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Alex NightWatcher: Solved! (5 / 5)

Win32.Rootkit.Koutodoor.a also known as Win32/Koutodoor.GU, W32/Koutodoor.O.gen!Eldorado, Backdoor ( 04c4e9411 ).

Malware Analysis of Win32.Rootkit.Koutodoor.a – AJCG.SYS

Created files:

%SysDir%\drivers\ajcg.sys
%SysDir%\lhfjvaa.dll

Autostart registry keys:

HKLM\System\CurrentControlSet\Services\ajcg\ImagePath: “system32\drivers\ajcg.sys”
HKLM\System\CurrentControlSet\Services\ajcg\DisplayName: “ajcg”

Detected by UnHackMe:

AJCG.SYS
Default location: %SYSDIR%\DRIVERS\AJCG.SYS

Dropper hash(md5): d6846582d97f9aaf24c73d2a47b370bf

Written by NightWatcher

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