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Virus Profile: PWS-Zbot.gen.aem

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 6/14/2012
Date Added: 6/14/2012
Origin: N/A
Length: VARIES
Type: Trojan
Subtype: Win32
DAT Required: 6753
Removal Instructions
   
 
 
   

Description

This is a Trojan detection. Unlike viruses, Trojans do not self-replicate. They are spread manually, often under the premise that they are beneficial or wanted. The most common installation methods involve system or security exploitation, and unsuspecting users manually executing unknown programs. Distribution channels include e-mail, malicious or hacked Web pages, Internet Relay Chat (IRC), peer-to-peer networks, etc.

Aliases:

  • Microsoft               -        TrojanDownloader:Win32/Cutwail.BE
  • Kaspersky             -        Trojan.Win32.Jorik.Totem.kj
  • Ikarus                    -        Trojan.Win32.Jorik
  • Symantec               -        Trojan.ADH.2

Indication of Infection

Presence of above mentioned files and registry keys

Methods of Infection

Trojans do not self-replicate. They are spread manually, often under the premise that the executable is something beneficial. Distribution channels include IRC, peer-to-peer networks, newsgroup postings, email spam, etc.

   

Virus Characteristics

When executed the Trojan copies itself into the following location.

  • %Userprofile%\3hmpa190gs.exe

It drops the below file 

  • %temp%\MSWQC.tmp

Below mentioned registry ensures that, the Trojan registers itself with the compromised system and execute itself upon every boot.

  • HKEY_USERS\S-1-[varies]\Software\Microsoft\Windows\CurrentVersion\Run:
    "3hmpa190gs"  =  “%Userprofile%\3hmpa190gs.exe”

It  also tries to connect to the following  websites:

  • n[removed]rr.ru
  • g[removed]r.ru
  • m[removed]yr.ru
  • so[removed]ry.ru
  • Ra[removed]kr.com/Ra[removed]kr.ru/Ra[removed]kr.kz/Ra[removed]kr.net
  • Og[removed]m8.com/Og[removed]m8.ru/Og[removed]m8.kz/Og[removed]m8.net
  • Mav[removed]Urv.com/Mav[removed]Urv.ru/Mav[removed]Urv.kz/Mav[removed]Urv.net
  • Pa[removed]yi.com/Pa[removed]yi.ru/Pa[removed]yi.kz/Pa[removed]yi.net
  • Dyd[removed]eu.com/Dyd[removed]eu.ru/Dyd[removed]eu.kz/Dyd[removed]eu.net
  • Ci[removed]ac.com/Ci[removed]ac.ru/Ci[removed]ac.kz/Ci[removed]ac.net
  • he[removed]sye.com/he[removed]sye.ru/he[removed]sye.kz/he[removed]sye.net
  • Ni[removed]Rod.com/Ni[removed]Rod.ru/Ni[removed]Rod.kz/Ni[removed]Rod.net
  • fo[removed]d3.com/fo[removed]d3.ru/fo[removed]d3.kz/fo[removed]d3.net
  • nu[removed]Od.com/nu[removed]Od.ru/nu[removed]Od.kz/nu[removed]Od.net
  • Aiw[removed]Eg.com/Aiw[removed]Eg.ru/Aiw[removed]Eg.kz/Aiw[removed]Eg.net
  • By[removed]ar.com/By[removed]ar.ru/By[removed]ar.kz/By[removed]ar.net
  • Fe[removed]dav.com/Fe[removed]dav.ru/Fe[removed]dav.kz/Fe[removed]dav.net
  • Ok[removed]Og.com/Ok[removed]Og.ru
   

All Users:
Use current engine and DAT files for detection and removal.

Modifications made to the system Registry and/or INI files for the purposes of hooking system startup, will be successfully removed if cleaning with the recommended engine and DAT combination (or higher).