Submission Summary:

What's been foundSeverity Level
Produces outbound traffic.
Creates a startup registry entry.
Contains characteristics of an identified security risk.


Technical Details:


Possible Security Risk

Security RiskDescription
Backdoor.Bifrose Backdoor.Bifrose is a backdoor trojan that attempts to propagate by exploiting local network shares. It will also attempt to join a predefined IRC server and channel in order to participate in DDoS attacks.

Threat CategoryDescription
A malicious trojan horse or bot that may represent security risk for the compromised system and/or its network environment


File System Modifications

#Filename(s)File SizeFile HashAlias
1 %ProgramFiles%\Java\klog.dat 0 bytes MD5: 0xD41D8CD98F00B204E9800998ECF8427E
SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709
(not available)
2 %ProgramFiles%\Java\mo2sr.exe
[file and pathname of the sample #1]
29,053 bytes MD5: 0xE8A2736578A199E325C5955F2B0AA341
SHA-1: 0xCAE8863A3BA2C9DB2F6FD558879B27D6A744105E
Trojan Horse [Symantec] [Kaspersky Lab]
BackDoor-CEP.svr [McAfee]
Troj/Agent-JZZ [Sophos]
Backdoor:Win32/Bifrose [Microsoft]
Virus.Win32.Bifrose [Ikarus]
Win-Trojan/Bifrose.28672.AH [AhnLab]


Memory Modifications

Process NameProcess FilenameMain Module Size
[filename of the sample #1][file and pathname of the sample #1]36,864 bytes
mo2sr.exe%ProgramFiles%\java\mo2sr.exe36,864 bytes


Registry Modifications


Other details


Remote HostPort Number


Outbound traffic (potentially malicious)



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