MX Lab just intercepted some samples of a new trojan attached to emails with the subject “You’ve got a fax”. The body of the message contains an embedded JPEG file and attached a ZIP file.

It looks like it is sent from the online service eFax (http://www.efax.com) but it’s not. The email address efax@efax.com is spoofed.
The ZIP file has the name eFax39106.zipand it contains the 40 kB large file efax871291.exe – please note that the numbers may vary.
At the time of writing, only 5 of the 43 AV engines at Virus Total did detect the trojan. The trojan is known as Gen:Trojan.Heur.FU.cC0@a4DqMHii (BitDefender), W32/Trojan3.BZM (F-Prot) or W32/Obfuscated.BQ!genr (Norman).
Virus Total permlink and MD5: f4dd8d5788d0f227bc51cd28b5892561.
View full post on mxlab – all about anti virus and anti spam
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Posted on 14 September 2010. Tags: “You’ve, contains, efax youve got a fax, efax871291 exe, emails, fax”, Trojan, youve got a fax
I have one from efax@efax.com
Efax show that emails will come from inbound@efax.com and file attachments are either their own format or as pdf or tif.
Thye attchment to mine is 21kb eFAX64328.zip