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Trojan:Win32/Enchanim


First posted on 09 July 2012.
Source: Microsoft

Aliases :

Trojan:Win32/Enchanim is also known as Trojan.Win32.Menti.noix (Kaspersky), WORM_SLENFBOT.JX (Trend Micro).

Explanation :



Trojan:Win32/Enchanim is a trojan that attempts to stop multiple security-related processes for the purpose of downloading and running other malicious code such as Worm:Win32/Gamarue.F.



Installation

This trojan is installed by other malware and is present as a randomly named file in the Windows system folder. The malware utilizes code injection in order to hinder detection and removal. When Trojan:Win32/Enchanim executes, it inject its code into running processes, including the following, for example:



  • csrss.exe
  • explorer.exe
  • lsass.exe
  • svchost.exe
Payload Terminates processes Trojan:Win32/Enchanim attempts to stop the following processes, many of which are security-related:
  • cfp.exe
  • avp.exe
  • kaspersky.exe
  • op_mon.exe
  • mcafee.exe
  • mcagent.exe
  • mcshield.exe
  • mctray.exe
  • mcsvhost.exe
  • mfevtps.exe
  • mfefire.exe
  • zonealarm.exe
  • egui.exe
  • nod32.exe
  • ekrn.exe
  • nod32kui.exe
  • msseces.exe
  • spiderui.exe
  • drwagntd.exe
  • drwagnui.exe
  • spiderml.exe
  • spidernt.exe
  • avscan.exe
  • avnotify.exe
  • avgnt.exe
  • ashdisp.exe
  • AVGIDSMonitor.exe
  • avgnsx.exe
  • avgcsrvx.exe
  • avgrsx.exe
  • avgw.exe
  • avgamsvr.exe
  • avg.exe
  • avgwdsvc
  • norton.exe
  • ccsvchst.exe
  • psctrls.exe
  • pavfnsvr.exe
  • pshost.exe
  • avengine.exe
Downloads other malware Trojan:Win32/Enchanim may contact a remote host at 188.190.98.166 using port 80 to download other malware, such as Worm:Win32/Gamarue.F. This trojan was also observed to contact a remote host at 31.186.102.156 using port 80.



Analysis by Jeong Mun

Last update 09 July 2012

 

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