Submission Summary:

What's been foundSeverity Level
Replication across networks by exploiting weakly restricted shares (common for Randex family of worms).
Produces outbound traffic.
Creates a startup registry entry.
Contains characteristics of an identified security risk.

 

Technical Details:

 

Possible Security Risk

Security RiskDescription
Backdoor.Graybird.GEN Backdoor.Graybird.GEN has rootkit functionality. It injects itself into various processes causing them to be hidden. It also logs keystrokes and sends this information to remote servers.

Threat CategoryDescription
A network-aware worm that attempts to replicate across the existing network(s)

 

File System Modifications

#Filename(s)File SizeFile HashAlias
1 %ProgramFiles%\svchost.exe 90,112 bytes MD5: 0x5FB76B7CFDE062E7ED799A4FCAFC9BD5
SHA-1: 0xB6CDF357E137F009786C0C62929C5EF711BF4659
Mal/Hupigon-E [Sophos]
Trojan.Win32.ServStart [Ikarus]
2 c:\Yuemingl.txt 1,354 bytes MD5: 0x4DA5CCAE002FE8BCA403CAC192A9306F
SHA-1: 0xE33C1282030144A3C241CC3FB9E608DAE838F535
(not available)

 

Memory Modifications

Process NameProcess FilenameMain Module Size
svchost.exe%ProgramFiles%\svchost.exe94,208 bytes

Process NameMain Module Size
svchost.exe.exe94,208 bytes
svchost.exe.exe94,208 bytes

 

Registry Modifications

 

Other details

China

PortProtocolProcess
1035TCPsvchost.exe (%ProgramFiles%\svchost.exe)

Remote HostPort Number
123.207.228.1353000
0.0.0.00

 

Outbound traffic (potentially malicious)

 

Heuristics Analysis

 

 

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 © 2017 ThreatExpert. All rights reserved.