Need help? Ask the community or hire an expert.
Go to Avira Answers
Virus:TR/Rimod.A.255
Date discovered:12/07/2011
Type:Trojan
In the wild:Yes
Reported Infections:Low
Distribution Potential:Low to medium
Damage Potential:Medium
Static file:Yes
File size:175.616 Bytes
MD5 checksum:3C244D2FA504E645C4C71139A6146425
VDF version:7.11.11.93 - Tuesday, July 12, 2011
IVDF version:7.11.11.93 - Tuesday, July 12, 2011

 General Method of propagation:
    Messenger


Aliases:
   •  Kaspersky: Backdoor.Win32.Ruskill.kz
     Microsoft: Trojan:Win32/Rimod


Platforms / OS:
   • Windows 2000
   • Windows XP
   • Windows 2003
    Windows Vista
    Windows 7


Side effects:
   • Drops files
   • Lowers security settings
   • Registry modification
   • Steals information

 Files It copies itself to the following location:
   • %APPDATA%\J-93219-1923-12901\msnmsg32.exe

 Registry One of the following values is added in order to run the process after reboot:

  [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "Mobile Device Service"="%APPDATA%\J-93219-1923-12901\msnmsg32.exe"



It creates the following entry in order to bypass the Windows XP firewall:

[HKLM\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\
   FirewallPolicy\StandardProfile\AuthorizedApplications\List]
   • "%APPDATA%\J-93219-1923-12901\msnmsg32.exe"="%APPDATA%\J-93219-1923-12901\msnmsg32.exe:*:Enabled:Mobile
      Device Service"

 Messenger It is spreading via Messenger. The characteristics are described below:

 Yahoo Messenger


Message
The sent message looks like one of the following:

   • hauska kuva!!! %link%
     !! haha wow %link%
     Burada komik bak!! %link%
     ceea ce o imagine nebun wow haha %link%
     du ser fint her! woww %link%
     haha omg crazy %link%
     hahahah nice billede :) %link%
     hahahahahaha!!!woww %link%
     hahahahahahahahaahahahahhaha %link%
     kijken naar wow hah %link%
     pogledaj ove slike!! %link%
     poglej to fotografijo!!! %link%
     pozrite sa na tto fotografi wow %link%
     r en rolig bild %link%
     sei bella in questa foto!! %link%
     te ves hermosa aqus belle photo! heheh %link%
     ten pic jest zabawne! hah %link%
     wer hat dieses Bild? wow %link%
     you look so weird in this pic!!! %link%

 Miscellaneous  Checks for an internet connection by contacting the following web sites:
   • albertoshistory.info; ale.pakibili.com; astro.ic.ac.uk;
      ate.lacoctelera.net; beta.neogen.ro; browseusers.myspace.com;
      crl.microsoft.com; deirdremccloskey.org; ds.phoenix-cc.net;
      epp.gunmablog.jp; erdbeerlounge.de; goodreads.com; heidegger.x-y.net;
      hrm.uh.edu; insidehighered.com; jb.asm.org; journalofaccountancy.com;
      journals.lww.com; mas.0730ip.com; mas.ahlamontada.com;
      mas.archivum.info; mas.josbank.com; mas.juegosbakugan.net;
      mas.mtime.com; mas.tguia.cl; mas.univie.ac.at; mcsp.lvengine.com;
      middleastpost.org; mix.price-erotske.in.rs; mix.thenaturistclub.com;
      mmm.bolbalatrust.org; old.longjuyt2tugas.com; old.youku.com;
      ols.systemofadown.com; ope.oaklandathletics.com; opl.munin.irf.se;
      pra.aps.org; pru.landmines.org; qun.51.com; refugee-action.org.uk;
      screenservice.com; scribbidyscrubs.com; shopstyle.com;
      southampton.ac.uk; stayontime.info; summer-uni-sw.eesp.ch;
      transnationale.org; tripadvisor.com; uks.linkedin.com; unclefed.com;
      versatek.com; websitetrafficspy.com; www.myspace.com;
      www.shearman.com; x.myspacecdn.com; xxx.jagdcom.de; xxx.stopklatka.pl

 File details Programming language:
The malware program was written in MS Visual C++.


Runtime packer:
In order to aggravate detection and reduce size of the file it is packed with a runtime packer.

Description inserted by Andrei Ilie on Friday, September 30, 2011
Description updated by Andrei Ilie on Friday, September 30, 2011

Back . . . .