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Type: trojan

Alias: rootkit.zeroaccess, trojan.sirefef

Description: Trojan.Sirefef.A is a family of trojans that perform a number of various and common malware behaviors. The generic nature of this detection means that the malicious behaviors exhibited by files detected as Trojan.Sirefef.A may vary from once instance of this detection to the next.


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  • C:\Windows\System32\winproxy.dll
  • C:\Windows\System32\dds_log_trash.cmd
  • C:\Documents and Settings\user-account-name\wqxout.exe
  • C:\Documents and Settings\user-account-name\jdFfFL.exe

Registry Keys

  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\epson_pm_rpcv2_02
  • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\epson_pm_rpcv2_02
  • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\epson_pm_rpcv2_02

Registry Values

  • HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wqxout