Submission Summary:

What's been foundSeverity Level
Produces outbound traffic.
Contains characteristics of an identified security risk.

 

Technical Details:

 

Possible Security Risk

Threat CategoryDescription
A keylogger program that can capture all user keystrokes (including confidential details such username, password, credit card number, etc.)
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 %System%\rebfec.exe
[file and pathname of the sample #1]
109,568 bytes MD5: 0x595A542F1B1EEC9C52017CC160173380
SHA-1: 0x39773C24DE47F9D09995457C1CB8AF758F2AC3FB
Backdoor.Nitol [Symantec]
Trojan-Spy.Win32.Agent.btsm [Kaspersky Lab]
Troj/Dloadr-DNE [Sophos]
DDoS:Win32/Nitol.A [Microsoft]
Trojan.Win32.ServStart [Ikarus]

 

Memory Modifications

Process NameProcess FilenameMain Module Size
rebfec.exe%System%\rebfec.exe126,976 bytes
[filename of the sample #1][file and pathname of the sample #1]126,976 bytes

Service NameDisplay NameStatusService Filename
NationalkruNationalmkd Instruments Domain Service"Running"%System%\rebfec.exe

 

Registry Modifications

 

Other details

China

PortProtocolProcess
1033TCPrebfec.exe (%System%\rebfec.exe)

Remote HostPort Number
mat.0pe.kr8080

 

Outbound traffic (potentially malicious)

 

 

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.