Forensic email data analysis tool

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Forensic email data analysis tool: DIGITS, a firm specializing in computer forensics and digital investigations, released Evidence Analyzer: Email Edition, which is designed to radically streamline the process of examining large quanti...

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PDF Malware Protected by AES-256

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PDF Malware Protected by AES-256 : Adobe Systems released a security update for Adobe Acrobat and Reader 9.x for Windows on December 16, 2011, in order to fix a zero-day vulnerability. As Vikram Thakur reported recently , there have been zero-day attacks using this PDF vulnerability, dropping Backdoor.Sykipot on to the compromised computer. We have found another variant of PDF malware in the wild using the same vulnerability. This version of PDF malware uses an encryption method that is found natively in the PDF specifications. As I wrote in my Portable Document Format Malware whitepaper , the encryption method used by PDF malware has changed from RC4 to AES. The AES specifies the encryption key has 128 bits in length. However, this variant adopts AES-256 as the encryption method, with a key length of 256 bits. The specification for the encryption method using AES-256 in a PDF is described as an extension of the ISO32000 version of PDF specification. It is able to download the PDF ex...
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Update: virustotal-search

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Update: virustotal-search : I didn’t expect my virustotal-search program to be that popular, so here is a new version with new features and a few fixes (version 0.0.1 contained a buggy experimental feature I hadn’t planned to release then). What I didn’t explain in my first post, is that virustotal-search builds a database (virustotal-search.pkl) of all your requests, so that recurring requests are served from that local database, and not from the VirusTotal servers. I’ve added a field (Requested) to indicate if the request was send to VirusTotal or served from the local database. If you want all requests to be send to VirusTotal, regardless of the content of the local database, use option –force. And if you don’t want to include your API key in the program source code, you have two alternatives: use option –key and provide the API key on the command line define environment variable VIRUSTOTAL_API2_KEY with the your API key virustotal-search_V0_0_3.zip ( https ) MD5: 89D4848...
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Investigating Indicators of Compromise In Your Environment With Latest Version of Redline

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Investigating Indicators of Compromise In Your Environment With Latest Version of Redline : Recently, Mandiant ® released a new version of Redline ™ . If you are not familiar with Redline, it is a great tool for investigating a specific Windows host in depth. We will have a more thorough look into Redline in the next month or so. What I wanted to touch on today is one of Redline’s brand new features: you can now use Indicators of Compromise (IOCs) to drive your Redline investigations. If you are not familiar with IOCs, I urge to you take a moment and head over to http://OpenIOC.org and have a look around. IOCs are the best way for finding indications of compromise and/or intrusion throughout your enterprise. IOCs are one of the main technologies that power Mandiant Intelligent Response, Mandiant’s flagship IR appliance, and have previously been accessible in free products with IOC Editor & IOC Finder . Some blog entries that might help bring you up to speed are Ryan Kazanciya...
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