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Spamvertised “IRS notice” Serving Malware

10
Oct
2011



Cybercriminals are spamvertising yet another malware-serving campaign. Impersonating the IRS, malicious attackers are attempting to entice end users into downloading and executing a malicious file attachment. 

Spamvertised message: Tax notice, There are arrears reckoned on your account over a period of 2010-2011 year. You will find all calculations according to your financial debt, enclosed. Sincerely, Internal Revenue Service


Detection rate:
Calculations.exe – TrojanDownloader:Win32/Dofoil.D – 33/43 (76.7%)
MD5   : 178bb562d9c0ef2b0a87467dcbd945ee
SHA1  : 9ef75146aeb27102a1e5662284f369a43144225c
SHA256: d1551934d60033c871b377015c8be65d608b33543f149369d1e70361e06dc05e

Upon execution, it phones back to falcononfly2006.ru/blog/task.php?bid=2bfc680038ba2be7&os=5-1-2600&uptime=0&rnd=150156

falcononfly2006.ru – 91.229.90.139, AS6753 – Email: [email protected]

[email protected] is also associated with the following domains:
diamondexchange2011.ru
philippinemoney2011.ru
Bedownloader2011.ru
dolcekomarenoro2011.ru
forsalga102.ru
runescapegpge2011.ru
yomwarayom2001.ru
philippinemoney2011.ru
moneymgmt2011.ru
moneykeep2011.ru
firewallmakeover.ru
czechmoney2011.ru
communityspace2911.ru
brazilianmoney2011.r
u

Monitoring of the campaign is ongoing.

This post has been reproduced from Dancho Danchev’s blog. Follow him on Twitter.

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