Submission Summary:

What's been foundSeverity Level
Produces outbound traffic.
Modifies some system settings that may have negative impact on overall system security state.
Creates a startup registry entry.
Contains characteristics of an identified security risk.


Technical Details:


Possible Security Risk

Security RiskDescription
Backdoor.Agent.LEL Backdoor.Agent.LEL is a threat that attempts to open backdoor and allows unauthorized access to an infected machine.

Threat CategoryDescription
A malicious backdoor trojan that runs in the background and allows remote access to the compromised system
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 %Temp%\Stox.exe
706,560 bytes MD5: 0x14E561FD0474CA9A5760B2034B9601E5
SHA-1: 0x676E54737A9FB5DA605F31BEED4B844B1E5A050B
Trojan.Klovbot [Symantec]
Backdoor.Win32.DarkKomet.eku [Kaspersky Lab]
Generic BackDoor.xa [McAfee]
Mal/Behav-058 [Sophos]
Backdoor:Win32/Fynloski.A [Microsoft]
Trojan.Win32.CDur [Ikarus]
2 [file and pathname of the sample #1] 922,112 bytes MD5: 0xE665E8A44A81BF55302200FA602320B4
SHA-1: 0xCB36BEFA690806B4C42B3C208CBA8B242C329EBA
Backdoor.Win32.DarkKomet.eku [Kaspersky Lab]
Backdoor:Win32/Fynloski.A [Microsoft]
Trojan.Win32.ProcessHijack [Ikarus]


Memory Modifications

Process NameProcess FilenameMain Module Size
stox.exe%Temp%\stox.exe761,856 bytes
system.exe%Temp%\system.exe761,856 bytes
[filename of the sample #1][file and pathname of the sample #1]950,272 bytes


Registry Modifications


Other details


Remote HostPort Number


Outbound traffic (potentially malicious)



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