Nov 27, 2012

Here's all the crapware that comes with new Windows 8 PCs | ITworld

Great little fact that has always bugged me. One more reason to use a Mac.

Here's all the crapware that comes with new Windows 8 PCs | ITworld:

The PC Decrapifier Wipes Unwanted Junk | The PC Decrapifier

The PC Decrapifier Wipes Unwanted Junk | The PC Decrapifier:

Nov 6, 2012

Researcher advises against use of Sophos antivirus on critical systems

Any exploit of any piece of software that remains un-patched is dangerous. If you have software that's deployed on an enterprise level, it makes it that much more important to have layers of security and excellent patching processes for ALL of your software.

If Sophos fails to patch exploits in a timely matter, that's a different story.

From Slashdot.


Antivirus provider Sophos has fixed a variety of dangerous defects in its products that were discovered by a security researcher who is recommending many customers reconsider their decision to rely on the company.

"Sophos claim that their products are deployed throughout healthcare, government, finance, and even the military," Tavis Ormandy wrote in an e-mail posted to a public security forum. "The chaos a motivated attacker could cause to these systems is a realistic global threat. For this reason, Sophos products should only ever be considered for low-value non-critical systems and never deployed on networks or environments where a complete compromise by adversaries would be inconvenient."

A more detailed report that accompanied Ormandy's e-mail outlined a series of vulnerabilities that attackers can exploit remotely to gain complete control over computers running unpatched versions of the Sophos software. At least one of them requires no interaction on the part of a victim, opening the possibility of self-replicating attacks, as compromised machines in turn exploit other machines, he said. The researcher provided what he said was a working exploit against Sophos version 8.0.6 running Apple's OS X. Attackers could "easily" rewrite the code to work against unpatched Sophos products that run on the Windows or Linux operating systems, he said.

A post published to Sophos's Naked Security blog around the same time Ormandy released his report thanked the researcher for privately disclosing the vulnerabilities so they could be fixed before attackers have the knowledge required to exploit them.

"The work of Tavis Ormandy, and others like him in the research community, who choose to work alongside security companies, can significantly strengthen software products," the post stated. "On behalf of its partners and customers, Sophos appreciates Tavis Ormandy's efforts and responsible approach."

The Sophos post detailed eight fixes that were released from 42 days to 55 days after Ormandy privately brought them to the attention of Sophos engineers. For his part, Ormandy concluded that the amount of time it took to release the patches was excessive.

"Sophos simply cannot react fast enough to prevent attacks, even when presented with a working exploit," he wrote. "Should an attacker choose to use Sophos Antivirus as their conduit into your network, Sophos will simply not be able to prevent their continued intrusion for some time, and you must implement contingency pans to handle this scenario if you choose to continue deploying Sophos."

A security researcher at Google, Ormandy stressed that his report and comments were entirely his, and not those of his employer.

With marked improvements in the security of browsers and Adobe's Reader and Flash applications, it wouldn't be surprising for attackers, particularly well-funded ones targeting a specific corporation or government agency, to turn their attention to AV programs. The detailed interactions AV programs have with browsers and sensitive operating system regions means there's plenty of opportunity.

It's unclear if Ormandy has analyzed the security of other antivirus products so he can arrive at an assessment of how they compare to Sophos. He didn't respond to an e-mail seeking comment for this post.

Why Google Went Offline Today and a Bit about How the Internet Works

Interesting Read from CloudFlare.

Today, Google's services experienced a limited outage for about 27 minutes over some portions of the Internet. The reason this happened dives into the deep, dark corners of networking. I'm a network engineer at CloudFlare and I played a small part in helping ensure Google came back online. Here's a bit about what happened.

At around 6:24pm PST / 02:24 UTC, CloudFlare employees noticed that Google's services were offline. We use Google Apps for things like email so when we can't reach their servers the office notices quickly. I'm on the Network Engineering team so I jumped online to figure out if the problem was local to us or global.

Troubleshooting

I quickly realised that we were unable to resolve all of Googles services — or even reach 8.8.8.8, Googles public DNS server — so I started troubleshooting DNS.
$ dig +trace google.com

Here's the response I got when I tried to reach any of Google.com's name servers:
google.com. 172800 IN NS ns2.google.com. google.com. 172800 IN NS ns1.google.com. google.com. 172800 IN NS ns3.google.com. google.com. 172800 IN NS ns4.google.com. ;; Received 164 bytes from 192.12.94.30#53(e.gtld-servers.net) in 152 ms ;; connection timed out; no servers could be reached

The fact that no servers could be reached means something was wrong. Specifically, it meant that from our office network we were unable to reach any of Googles DNS servers.

I started to look at the network layer, see if that's where the problems lay.
PING 216.239.32.10 (216.239.32.10): 56 data bytes Request timeout for icmp_seq 0 92 bytes from 1-1-15.edge2-eqx-sin.moratelindo.co.id (202.43.176.217): Time to live exceeded

That was curious. Normally, we shouldn't be seeing an Indonesian ISP (Moratel) in the path to Google. I jumped on one of CloudFlare's routers to check what was going on. Meanwhile, others reports from around the globe on Twitter suggested we weren't the only ones seeing the problem.

Internet Routing

To understand what went wrong you need to understand a bit about how networking on the Internet works. The Internet is a collection of networks, known as "Autonomous Systems" (AS). Each network has a unique number to identify it known as AS number. CloudFlare's AS number is 13335, Google's is 15169. The networks are connected together by what is known as Border Gateway Protocol (BGP). BGP is literally the glue of the Internet — announcing what IP addresses belong to each network and establishing the routes from one AS to another. An Internet "route" is exactly what it sounds like: a path from the IP address on AS to another.

BGP is largely a trust-based system. Networks trust each other to say which IP addresses and other networks are behind them. When you send a packet or make a request across the network, your ISP connects to its upstream providers or peers and finds the shortest path from your ISP to the destination network.

Unfortunately, if a network starts to send out an announcement of a particular IP address or network behind it, when in fact it is not, if that network is trusted by its upstreams and peers then packets can end up misrouted. That is what was happening here.

I looked at the BGP Routes for a Google IP Address. The route traversed Moratel (23947), an Indonesian ISP. Given that I'm looking at the routing from California and Google is operating Data Centre's not far from our office, packets should never be routed via Indonesia. The most likely cause was that Moratel was announcing a network that wasn't behind them.

The BGP Route I saw at the time was:
tom@edge01.sfo01> show route 216.239.34.10 inet.0: 422168 destinations, 422168 routes (422154 active, 0 holddown, 14 hidden) + = Active Route, - = Last Active, * = Both 216.239.34.0/24 *[BGP/170] 00:15:47, MED 18, localpref 100 AS path: 4436 3491 23947 15169 I > to 69.22.153.1 via ge-1/0/9.0

Looking at other routes, for example to Google's Public DNS, it was also stuck routing down the same (incorrect) path:
tom@edge01.sfo01> show route 8.8.8.8 inet.0: 422196 destinations, 422196 routes (422182 active, 0 holddown, 14 hidden) + = Active Route, - = Last Active, * = Both 8.8.8.0/24 *[BGP/170] 00:27:02, MED 18, localpref 100 AS path: 4436 3491 23947 15169 I > to 69.22.153.1 via ge-1/0/9.0

Route Leakage



(Image Credit: The Simpsons)

Situations like this are referred to in the industry as "route leakage", as the route has "leaked" past normal paths. This isn't an unprecedented event. Google previously suffered a similar outage when Pakistan was allegedly trying to censor a video on YouTube and the National ISP of Pakistan null routed the service's IP addresses. Unfortunately, they leaked the null route externally. Pakistan Telecom's upstream provider, PCCW, trusted what Pakistan Telecom's was sending them and the routes spread across the Internet. The effect was YouTube was knocked offline for around 2 hours.

The case today was similar. Someone at Moratel likely "fat fingered" an Internet route. PCCW, who was Moratel's upstream provider, trusted the routes Moratel was sending to them. And, quickly, the bad routes spread. It is unlikely this was malicious, but rather a misconfiguaration or an error evidencing some of the failings in the BGP Trust model.

The Fix

The solution was to get Moratel to stop announcing the routes they shouldn't be. A large part of being a network engineer, especially working at a large network like CloudFlare's, is having relationships with other network engineers around the world. When I figured out the problem, I contacted a colleague at Moratel to let him know what was going on. He was able to fix the problem at around 2:50 UTC / 6:50pm PST. Around 3 minutes later, routing returned to normal and Google's services came back online.

Looking at peering maps, I'd estimate the outage impacted around 3–5% of the Internet's population. The heaviest impact will have been felt in Hong Kong, where PCCW is the incumbent provider. If you were in the area and unable to reach Google's services around that time, now you know why.

Building a Better Internet

This all is a reminder about how the Internet is a system built on trust. Today's incident shows that, even if you're as big as Google, factors outside of your direct control can impact the ability of your customers to get to your site so it's important to have a network engineering team that is watching routes and managing your connectivity around the clock. CloudFlare works every day to ensure our customers get the optimal possible routes. We look out for all the websites on our network to ensure that their traffic is always delivered as fast as possible. Just another day in our ongoing efforts to #savetheweb.

Microsoft Is Turning Kinect Into a Narc

This really creeps me out. From Gizmodo.

Kinect is tons of fun. Have you ever played Dance Central 3? Great game. But according to a newly discovered patent, the Xbox add-on is also maybe spying on you, which is totally not cool, man.

This very big brother-y piece of intellectual property—Content Distribution Regulation by Viewing User—uses Kinect's camera to count the number of people in the room and in some cases, identify who they are. This "consumer detector" will charge you licensing fees based on how many bodies are present, and could even stop playback to collect on you if it detects more humans than you've paid for.

Sorry if you have a baby face, because the tech could also check on ages and cut off mature content if the system doesn't think you're old enough. God, Kinect. Such a tattletale! [USPTO viaGeekwire via BetaBeat]

Sep 28, 2012

SNMP Basics

Here is a great writeup on SNMP basics that I have blatantly stolen from Paessler.com.

SNMP, MIBs and OIDs - an Overview

SNMP is one of the most commonly used technologies when it comes to network monitoring. Bandwidth Monitoring programs like PRTG Network Monitor use it. But how does SNMP work? What are MIBs and OIDs? Read this short introduction into the world of SNMP!

SNMP Basics

SNMP stands for Simple Network Management Protocol and consists of three key components: managed devices, agents, and network-management systems (NMSs). A managed device is a node that has an SNMP agent and resides on a managed network. These devices can be routers and access server, switches and bridges, hubs, computer hosts, or printers. An agent is a software module residing within a device. This agent translates information into a compatible format with SNMP. An NMS runs monitoring applications. They provide the bulk of processing and memory resources required for network management.

MIB, OID, etc.

MIB stands for Management Information Base and is a collection of information organized hierarchically. These are accessed using a protocol such as SNMP. There are two types of MIBs: scalar and tabular. Scalar objects define a single object instance whereas tabular objects define multiple related object instances grouped in MIB tables.
OIDs or Object Identifiers uniquely identify manged objects in a MIB hierarchy. This can be depicted as a tree, the levels of which are assigned by different organizations. Top level MIB object IDs (OIDs) belong to different standard organizations. Vendors define private branches including managed objects for their own products.
SNMP version 1, which is the SNMP standard supported by PRTG Network Monitor, was the initial development of the SNMP protocol. A description can be found in Request for Comments (RFC) 1157 and it functions within the specification of the Structure of Management Information (SMI). It operates over User Datagram Protocol (UDP), Internet Protocol (IP), OSI Connectionless Network Services (CLNS), AppleTalk Datagram Delivery Prtocol (DDP), and Novell Internet Packet Exchange (IPX). SNMP v1 is considered the de facto network management protocol in the Internet community.
SNMP works on the basis that network management systems send out a request and the managed devices return a response. This is implemented using one of four operations: Get, GetNext, Set, and Trap. SNMP messages consist of a header and a PDU (protocol data units). The headers consist of the SNMP version number and the community name. The community name is used as a form of security in SNMP. The PDU depends on the type of message that is being sent. The Get, GetNext, and Set, as well as the response PDU, consist of PDU type, Request ID, Error status, Error index and Object/variable fields. The Trap consist of Enterprise, Agent, Agent address, Generic trap type, Specific trap code, Timestamp and Object/Value fields.
MIBs are a collection of definitions which define the properties of the managed object within the device to be managed (such as a router, switch, etc.) Each managed device keeps a database of values for each of the definitions written in the MIB. As such, it is not actually database but implementation dependant. Each vendor of SNMP equipment has an exclusive section of the MIB tree structure under their control.
In order for all of this to be properly organized, all of the manageable features of all products (from each vendor) are arranged in this tree. Each 'branch' of this tree has a number and a name, and the complete path from the top of the tree down to the point of interest forms the name of that point. This is the OID. Nodes near the top of the tree are extremely general I nature. For example, to get to the Internet, one has to reach to the fourth tier. As one moves further down, the names get more and more specific, until one gets to the bottom, where each node represents a particular feature on a specific device (or agent).

Sep 4, 2012

Mac Terminal Tricks

I use the Terminal application on my Mac all day long.  I have numerous different systems that I connect to for different tasks.  Generally, I have one terminal open and I can just ssh to various systems from that window.  Lately however, I have been customizing things a bit.  One thing I have liked is creating a default look (profile) for various systems so I know specifically what box I am on.  Some systems have nearly identical test / dev systems and the last thing I want to do is enter a command on a production system when it was meant for test.  Once inside the terminal application I can simply do a Shift-Command-N to bring up the command window and type in the profile for that system.  Since I can enter the initial command for each profile, this makes connecting to various systems with a specialized look very simple and easy.  So I can have my test system with green text and my production systems all glowing red.

*update*  It appears that you only get the custom colors and not the actual command.  I have posted in the Support Community. I'll update here if I get any response.


Jul 27, 2012

Procedures, Documentation, and Checklists, Oh My!

I cannot stress the importance of procedures, documentation and checklists enough when working in information technology. Not just using them, but KEEPING THEM UP TO DATE!

Just yesterday I ran into a situation where I thought something was being done one way, when someone else in my group did it a different way. We were both following procedures laid out in a checklist that was approved by our managers but something was left off the list. I thought it was always being done one way while he did it a different way. Apparently my way wasn't being done at all and since his method was different, he never thought there was any issue. When I was questioned about it by my manager, it was discovered that something was missing from our checklist.

Having all the checklists and procedures in the world is rendered completely useless if they aren't updated and checked regularly and verified against old old work to ensure uniformity and accuracy.

Next week: "Tools and Recommendations for Tracking Procedures"

Jun 7, 2012

Apple's iPhone coming to Virgin Mobile with $30/mo. plans June 29

I really need to look into switching from AT&T.

Apple's iPhone coming to Virgin Mobile with $30/mo. plans June 29: Virgin Mobile USA announced on Thursday that it will offer Apple's iPhone 4S and iPhone 4 beginning Friday, June 29, with contract-free plans as low as $30 per month.

May 16, 2012

OS X Versions

For those of us with older Macs...

10.0.x    Cheetah                March 24, 2001
10.1.x    Puma                    September 25, 2001
10.2.x    Jaguar                   August 24, 2002
10.3.x    Panther                 October 24, 2003
10.4.x    Tiger                     April 29, 2005
10.5.x    Leopard                October 26, 2007
10.6.x    Snow Leopard      August 28, 2009  
10.7.x    Lion                      July 10, 2011
10.8.x    Mountain Lion      ??   (summer, 2012)

May 11, 2012

CBORD Steps into the 21st century!

Well, it looks like CBORD has taken a big step here... they are going out on a limb and offering SECURE FTP for file transfers, OMG!

CBORD now offering Secure FTP

I know, I know... it's a risky endeavor but someone had to take the lead and offer this service to their customers. After all, it's 2012 and we need to start thinking about the future. No more of this waiting around for integral services to be vetted by the rest of the software development communities.  They are taking the bull by the horns and rolling out this service as quick as possible.

May 7, 2012

Apple Releases iOS 5.1.1

Apple Releases iOS 5.1.1:
Only 50 MB. Hurrah for incremental updates.

May 6, 2012

Monitoring VMWare logs, (Wed, May 2nd)

Monitoring VMWare logs, (Wed, May 2nd): Virtualization is so popular today that there is almost no company that does not use a virtualizatio ...(more)...

Facebook Says It's Filtering Comments For Spam, Not Censoring Them

Facebook Says It's Filtering Comments For Spam, Not Censoring Them: bhagwad writes "Apparently Robert Scoble tried to post a long comment on Facebook only to have a message pop up saying 'This comment seems irrelevant or inappropriate and can't be posted. To avoid having your comments blocked, please make sure they contribute to the post in a positive way.' If true, this is huge. For one the self-moderating system of comments has always been the rule so far. And with countries like India rooting for the pre-screening of content and comments, is Facebook thinking of caving into these demands?" Facebook says there's a more innocuous explanation: namely, that the comment triggered a spam filter.

Apr 25, 2012

Proper Prior Procedures Prevents Piss Poor Performance

I've said it a million times: "Proper prior procedures prevents piss poor performance."  Each and every day you should consult your procedures prior to performing any task. If not to make sure you are doing things correctly, then to make sure the procedure hasn't been updated in some way.

I work in Information Technology and each and every day I do something that I have done at least a dozen times before.  If it's not submitting a firewall rule, it's assigning an IP address.  If it's not cloning a system, it's adding something to Active Directory.  We all do things every day that are repeated over and over again.  We kid ourselves that we could do these things in the dark, or blindfolded.  Most of the time the tasks get completed in the required time frame and done properly.

But, when was the last time you consulted the procedures for the task and verified that you aren't missing something? When was the last time you had to go back and "re-do" something on systems that had been missed?

I try my hardest to document everything that I do.  If your job requires you to repeat several tasks throughout the day and you find yourself repeating these steps and double-checking your work more than you think is necessary, I suggest you get a good documentation system, or "wiki", learn how to use it, and consult that documentation regularly!

Mar 1, 2012

E-mail shines in Windows 8 with radical overhaul of mail client

E-mail shines in Windows 8 with radical overhaul of mail client:

The Windows 8 Consumer Preview comes with a pre-installed e-mail client for webmail and Exchange. While it's designed with the touch-friendly Metro interface in mind, it's quite usable even in traditional desktop mode, at least for the basic tasks of reading and writing messages.

Windows 8 Mail is an alternative to the mail client in Windows Live Essentials, a free productivity suite for download on the stable versions of Windows in use today. Microsoft has not yet released a Windows 8-specific version of Outlook, the fee-based, business-class e-mail client that is part of Office. A beta version of "Office 15" is expected this summer, Office President Kurt DelBene said this week.

Feb 23, 2012

How to test OS X Mountain Lion's Gatekeeper in Lion, (Wed, Feb 22nd)

How to test OS X Mountain Lion's Gatekeeper in Lion, (Wed, Feb 22nd): While I started working on comparing various OS X hardening guides (see the prior diary from a coupl ...(more)...

Feb 21, 2012

The Ultimate OS X Hardening Guide Collection, (Mon, Feb 20th)

The Ultimate OS X Hardening Guide Collection, (Mon, Feb 20th): Many security professionals tend to use OS X systems. Maybe for the nice and shiny looks, or the Uni ...(more)...

Feb 19, 2012

An Early Look At Mac OS X 10.8

An Early Look At Mac OS X 10.8: adeelarshad82 writes "Earlier today Apple announced their next OS, Mountain Lion. According to an early look, OS X 10.8 does more to integrate social networking and file-synching into a personal computer than any other OS. It tightly integrates with the whole Apple ecosystem that includes iOS devices and the free iCloud sharing service. Moreover Mountain Lion adds a powerful new line of defense against future threats where a malware app is prevented from running even if it is deliberately downloaded to a computer. Even though Apple's clearly got a lot of fine-tuning to do—and possibly a few features to add, there's no doubt that Mountain Lion already looks very fine." Update: 02/16 15:04 GMT by T : New submitter StephenBrannen writes with some more details culled from CNET. The newest OS X has now been released to developers, with an official release date planned for this summer. "Mountain Lion, as it is called, will further blur the lines between iOS and its Mac OS. iOS features that are being ported include: Messages (replacing iChat), Notification Center, Game Center, Notes, and AirPlay mirroring. Also new to Mac OS is the addition of Gatekeeper, which should help prevent malware attacks on Apple products. Not announced is whether Siri will be ported to the Mac."

Feb 17, 2012

Impressions: Windows Sysinternals Administrator's Reference

Impressions: Windows Sysinternals Administrator's Reference: Mark Russinovich and Aaron Margosis have written another awesome addition to the Microsoft Press catalog, Windows Sysinternals Administrator's Reference. Per my policy, because I did not read the whole book I am only posting "impressions" here and not a full Amazon.com review.
In brief this book will tell you more about the awesome Sysinternals tools than you might have thought possible. One topic that caught my attention was using Process Monitor to summarize network activity (p 139). This reminded me of Event Tracing for Windows and Network Tracing in Windows 7. I remain interested in this capability because it can be handy for incident responders to collect network traffic on endpoints without installing new software, relying instead on native OS capabilities.
I suggest keeping a copy of this book in your team library if you run a CIRT. Thorough knowledge of the Sysinternals tools is a great benefit to anyone trying to identify compromised Windows computers.
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Copyright 2003-2011 Richard Bejtlich and TaoSecurity (taosecurity.blogspot.com and www.taosecurity.com)

Jan 23, 2012

Windows Log Parsing

http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=24659 – logparser 2.2 from MS

http://martin77s.wordpress.com/2010/01/16/evtlogparser/ - someone wrote an overlay for logparser


http://www.eventid.net/ - this is good if trying to find esoteric event codes

Thanks Charles!