Threat Encyclopedia

Selected viruses, spyware, and other threats: sorted alphabetically

Win32/Lirva.C

W32/Avril-B, WORM_LIRVA.C, I-Worm/Naith.C

Win32/Lirva.C is a worm spreading as an email file attachment via IRC, ICQ and network drives.  It is written in Visual C++ and compressed by UPX.  The size of the packed file is 34 814 bytes.  When its unpacked the size is more than 160 kilobytes.

Win32/Lirva.C is a variant of the worm Win32/Lirva.AThe list of message subjects is extended and partly modified.  This variant uses following texts:

Fw: Redirection error notification
Re: Brigada Ocho Free membership
Re: According to Purge's Statement
Fw: Avril Lavigne - CHART ATTACK!
Re: Reply on account for IIS-Security Breach (TFTP)
Re: ACTR/ACCELS Transcriptions
Re: IREX admits you to take in FSAU 2003
Fwd: Re: Have U requested Avril Lavigne bio?
Re: Reply on account for IFRAME-Security breach
Fwd: Re: Reply on account for Incorrect MIME-header
Re: Vote seniors masters - don't miss it!
Fwd: RFC-0245 Specification requested...
Fwd: RFC-0841 Specification requested...
Fw: F. M. Dostoyevsky "Crime and Punishment"
Re: Junior Achievement
Re: Ha perduto qualque cosa signora?

There is an attachment in this message 34814 bytes in size and has one of the following names:

Resume.exe
ADialer.exe
MSO-Patch-0071.exe
MSO-Patch-0035.exe
Two-Up-Secretly.exe
Transcripts.exe
Readme.exe
AvrilSmiles.exe
AvrilLavigne.exe
Complicated.exe
TrickerTape.exe
Sophos.exe
Cogito_Ergo_Sum.exe
CERT-Vuln-Info.exe
Sk8erBoi.exe
IAmWiThYoU.exe
Phantom.exe
EntradoDePer.exe
SiamoDiTe.exe
BioData.exe
ALavigne.exe

The file avril-ii.inf created by the worm Win32/Livra.C contains following text:

2002 (c) Otto von Gutenberg
Made in .::]|KaZAkHstaN|[::.
As stated before, purpose is only educational, however...

I'm back to the scene with one more gift |Avril-II|
(remember 'A' version of Avril-II)
HINT:NB: NEVER ACCEPT GIFTS FROM THE STRANGER
Avril-II is commonly dangerous because of its over-trojaned issues
~Greetz to Brigada Ocho (http://vx.netlux.org/~b8),
Darkside Project(http://darkside.dtn.ru)
and Weisses Fleisch Project (http://wf.h1.ru)
~Greetz to Rocco (http://primatelost.net)
Many thankx to my muse Avril Lavigne whose beauty causes work to flow rapidly
New features included: ICQ/IrC/ShaReD (urgently persuade to check it instantly)
BackOrifice-server dropper included

P.S.> How is my work?

Cheerz, Otto (www.otto-koden.h1.ru)

The rest of the Win32/Livra.C properties are the same as those of Win32/Lirva.A.

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