Backdoor Bifrose – dmprrv.dll – 60342cf0a6df31e328782f2f612c0510

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Backdoor Bifrose
Also known as: Trojan Agent, Trojan Siggen
SHA256: caca3a1174ba6803f11504031682f9b397d92d2be55255a72594abea340f3a28
SHA1: ccd1d63ff3272ef8cb99e9e4fa949d5b69a6d7d6
MD5: 60342cf0a6df31e328782f2f612c0510
File size: 904192 bytes

Created files:

C:\windows\system32\dmprrv.dll – Backdoor Bifrose
C:\windows\system32\kernel31.dll – Backdoor Bifrose
%Temp%\IXP000.TMP\mspaint.exe – Backdoor Bifrose
%Temp%\IXP000.TMP\mstsc.exe – Backdoor Bifrose
%Temp%\IXP000.TMP\netsetup.exe – Backdoor Bifrose
%Temp%\IXP000.TMP\sndrec32.exe – Backdoor Bifrose
%Temp%\IXP000.TMP\sndvol32.exe – Backdoor Bifrose
%Temp%\IXP000.TMP\tian.exe – Backdoor Bifrose
%Temp%\IXP000.TMP\twff.exe – Backdoor Bifrose

Backdoor Bifrose created autostart registry keys:

HKLM\Software\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0: rundll32.exe %WinDir%\System32\advpack.dll,DelNodeRunDLL32 “%Temp%\IXP000.TMP\”
HKLM\System\CurrentControlSet\Services\dmprrv\Type: 10010000
HKLM\System\CurrentControlSet\Services\dmprrv\Start: 02000000
HKLM\System\CurrentControlSet\Services\dmprrv\ErrorControl: 01000000
HKLM\System\CurrentControlSet\Services\dmprrv\DisplayName: dmprrv
HKLM\System\CurrentControlSet\Services\dmprrv\ImagePath: %WinDir%\System32\svchost.exe -k dmprrv
HKLM\System\CurrentControlSet\Services\dmprrv\Parameters\ServiceDll: 2500530079007300740065006D0052006F006F00740025005C00530079007300740065006D00330032005C0064006D0070007200720076002E0064006C006C000000

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