Threat Description

Rootkit:​W32/Agent.UG

Details

Aliases:Rootkit:​W32/Agent.UG, Worm.Win32.AutoRun.lyo
Category:Malware
Type:Rootkit
Platform:W32

Summary



A program or set of programs which hides itself by subverting or evading the computer's security mechanisms, then allows remote users to secretly control the computer's operating system.



Removal


Automatic action

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.

More

You may wish to refer to the Support Community for further assistance. You also may also refer to General Removal Instructions for a general guide on alternative disinfection actions.



Technical Details



This rootkit will execute on the following operating systems:

  • Windows 2000
  • Windows XP
  • Windows 2003
  • Windows Vista
  • Windows Vista SP1

It removes the hooked addresses corresponding to the following NT Functions (which are implemented in Ntoskrnl.exe), then restores them to their original values:

  • NtProtectVirtualMemory
  • NtOpenThread
  • NtTerminateThread
  • NtCreatePort
  • NtConnectPort
  • NtCreateKey
  • NtAdjustPrivilegesToken
  • NtCreateFile
  • NtWriteVirtualMemory
  • NtOpenProcess
  • NtCreateProcess
  • NtCreateProcessEx
  • NtCreateSection
  • NtCreateThread
  • NtDeleteKey
  • NtDeleteValueKey
  • NtDuplicateObject
  • NtEnumerateKey
  • NtEnumerateValueKey
  • NtLoadDriver
  • NtLoadKey
  • NtLoadKey2
  • NtNotifyChangeKey
  • NtOpenFile
  • NtOpenKey
  • NtOpenSection
  • NtQueryKey
  • NtQueryMultipleValueKey
  • NtQueryValueKey
  • NtReplaceKey
  • NtRestoreKey
  • NtResumeThread
  • NtSaveKey
  • NtSetContextThread
  • NtSetInformationFile
  • NtSetInformationKey
  • NtSetSystemInformation
  • NtSetValueKey
  • NtSuspendThread
  • NtSystemDebugControl
  • NtTerminateProcess





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