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Backdoor:W32/SdBot.CNJ

Classification

Category: Malware

Type: Backdoor

Aliases: Backdoor:W32/SdBot.CNJ, Trojan.Win32.Agent.asdj, W32.Ackantta@mm (Symantec), W32/Autorun-RI (Sophos), W32/Xirtem@MM (McAfee), VirTool:Win32/CeeInject.gen!K (Microsoft)

Summary


Backdoor:W32/SdBot.CNJ is a piece of malicious software that tries to disable various firewalls and antivirus programs, steal passwords from the infected machine and spread through removable media devices.

Removal


Automatic action

Based on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the detected program or file, or ask you for a desired action.

Knowledge Base

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About the product

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Technical Details


Process Changes

Creates these processes:

  • %cwd%\[filename].exe
  • %programfiles%\Internet
  • Explorer\IEXPLORE.EXE/[filename]

Creates these mutexes:

  • Y_aKS~pXq1MKTN4PE
Network Connections

Attempts to connect with HTTP to:

  • Web1.(censored)[removed].org:443/TCP
Registry Modifications

Sets these values:

  • HKCU\Software\Microsoft\Windows NT\CurrentVersion (default) = h1Ucm{yQvor}^imlol|Pxhc|en isl
  • HKCU\Software\Microsoft\Windows\CurrentVersion\Run QnX = c:\(path)\[filename].(filename)exe
  • HKLM\SOFTWARE\Microsoft\Active Setup\Installed Components\{77520Q86-864L-N81R-0R2W-7U2G0P22436U} StubPath = "c:\(path)\.(filename)exe"
  • HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run QnX =c:\(path)\.(filename)exe

Creates these keys:

  • HKLM\SOFTWARE\Microsoft\Active Setup\Installed Components\{77520Q86-864L-N81R-0R2W-7U2G0P22436U}