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There’s nothing old school about viruses

22

Aug

2012

Recently, we discovered a new parasitic infection virus in the wild – Win32/Floxif – which specifically targets DLL files. Most of the attacks of this threat have been observed to come from a specific geographic region. Win32/Floxif replaces 5 bytes at the entry point of the infected file with a jmp instruction, which jumps directly […]

Category General Written by Microsoft Malware Protection Center 0 Comments

Strange Case of W32.Xpaj.B: Patient Zero

25

May

2012

A number of days ago, we observed a new variant of the W32.Xpaj.B virus and we blogged all of the initial details about its new features and how the outbreak sample is the patient zero of the infection. We have now done more analysis and the conclusion is in: there is no outbreak and W32.Xpaj.B […]

Category General Written by Symantec Security Response Blog 0 Comments

XPAJ out with EPO & complex encryption

22

Sep

2011

The new variant of W32.Xpaj is in the wild which uses Entry Point Obfuscation (EPO) technique to infect the Windows executable files. This variant is one of the most complex polymorphic infector seen till date. It overwrites any random subroutine from executable with its own code and redirects few call instructions to point to its […]

Category General Written by Quick Heal Weblog 0 Comments

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There’s nothing old school about viruses

Strange Case of W32.Xpaj.B: Patient Zero

XPAJ out with EPO & complex encryption

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