Submission Summary:

What's been foundSeverity Level
Capability to send out email message(s) with the built-in SMTP client engine.
Creates a startup registry entry.
Contains characteristics of an identified security risk.


Technical Details:


Possible Security Risk

Security RiskDescription
Backdoor.Beastdoor Backdoor.Beastdoor embeds itself into explorer.exe and iexplore.exe which can run without notice by the user. This trojan behaves as a backdoor which can be configure to disable firewalls and AV applications. Once run, it allows attacker to gain access and control over the infected machine. This trojan is also capable of sending notification to the attacker via email and ICQ.
Adware.Component.Unrelated These common components have files and keys that are in different threats but the threats are not related to one another in that the author of the signature is not the same. It is recommended that all these entries be removed.

Threat CategoryDescription
A malicious backdoor trojan that runs in the background and allows remote access to the compromised system


File System Modifications

#Filename(s)File SizeFile HashAlias
1 %Windir%\msagent\
31,120 bytes MD5: 0x1B65329CFD7797AF1053253DB96F8FB9
SHA-1: 0x7034AA5C5C0003C7F8637D387CD00BDC57CC7137
Backdoor.Beasty [Symantec]
Backdoor.Win32.Beastdoor.l [Kaspersky Lab]
BackDoor-AMQ [McAfee]
Troj/BeastDo-V [Sophos]
Backdoor:Win32/Beastdoor.L [Microsoft]
Backdoor.Win32.Beastdoor [Ikarus]
Win-Trojan/Beastdoor.34186 [AhnLab]
2 %System%\mslg.blf 89 bytes MD5: 0xF32B2327E13497E7D14560203D608398
SHA-1: 0xE6D1F0C0CEA112DF6199283A6FF0138F46745E6A
(not available)


Memory Modifications

Process NameProcess FilenameMain Module Size
svchost.exe%Windir%\svchost.exe118,784 bytes\msagent\mscsie.com118,784 bytes\msdiwh.com118,784 bytes
[filename of the sample #1][file and pathname of the sample #1]118,784 bytes

Service NameDisplay NameNew StatusService Filename
ALGApplication Layer Gateway Service"Stopped"%System%\alg.exe
SharedAccessWindows Firewall/Internet Connection Sharing (ICS)"Stopped"%System%\svchost.exe -k netsvcs


Registry Modifications


Other details


1034TCPsvchost.exe (%Windir%\svchost.exe)

Remote HostPort Number



All content ("Information") contained in this report is the copyrighted work of Threat Expert Ltd and its associated companies ("ThreatExpert") and may not be copied without the express permission of ThreatExpert.

The Information is provided on an "as is" basis. ThreatExpert disclaims all warranties, whether express or implied, to the maximum extent permitted by law, including the implied warranties that the Information is merchantable, of satisfactory quality, accurate, fit for a particular purpose or need, or non-infringing, unless such implied warranties are legally incapable of exclusion. Further, ThreatExpert does not warrant or make any representations regarding the use or the results of the use of the Information in terms of their correctness, accuracy, reliability, or otherwise.

Copyright © 2018 ThreatExpert. All rights reserved.