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Date discovered:02/08/2010
In the wild:Yes
Reported Infections:Low
Distribution Potential:Medium to high
Damage Potential:Medium
Static file:Yes
File size:137.728 Bytes
MD5 checksum:79B6597F87059A3AA0931CDEE2A8304E
VDF version:
IVDF version:

 General Method of propagation:
   • Autorun feature
   • Infects files

   •  Kaspersky: Trojan.Win32.Jorik.IRCbot.vp
   •  TrendMicro: TROJ_JORIK.GP
   •  Microsoft: Trojan:Win32/Ircbrute

Platforms / OS:
   • Windows 2000
   • Windows XP
   • Windows 2003
   • Windows Vista
   • Windows 7

Side effects:
   • Third party control
   • Drops malicious files
   • Lowers security settings
   • Registry modification

 Files It copies itself to the following location:
   • %APPDATA%\E-73473-3674-74335\%random character string%

It deletes the initially executed copy of itself.

 Registry One of the following values is added in order to run the process after reboot:

–  [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "%random character string%"="%APPDATA%\%random character string%.exe"

It creates the following entry in order to bypass the Windows XP firewall:

– [HKLM\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\
   • "%APPDATA%\E-73473-3674-74335\msnrsmsn.exe"="%APPDATA%\E-73473-3674-74335\msnrsmsn.exe:*:Enabled:Microsoft

 IRC To deliver system information and to provide remote control it connects to the following IRC Servers:

Server: mindweed**********.ru
Port: 1863
Server password: ngrBot
Channel: #ngr
Nickname: %random character string%
Password: ngrBot

Server: **********.201.66.32
Port: 1863
Server password: ngrBot
Channel: #ngr
Nickname: %random character string%
Password: ngrBot

– Furthermore it has the ability to perform actions such as:
    • connect to IRC server
    • Launch DDoS UDP flood
    • disconnect from IRC server
    • Execute file
    • Join IRC channel
    • Leave IRC channel
    • Start spreading routine
    • Visit a website

 Stealing It tries to steal the following information:
– Passwords typed into 'password input fields'

– A logging routine is started after the following website is visited, which contains one of the following substrings in the URL:
   • bebo.
   • facebook.
   • friendster.
   • twitter.

– It captures:
    • Login information

 Injection – It injects itself as a remote thread into a process.

    All of the following processes:
   • explorer.exe
   • %random process%

Access to the following websites is effectively blocked:
   • *bitdefender.*; *bullguard.*; *garyshood.*; *gdatasoftware.*;
      *kaspersky.*; *malwarebytes.*; *novirusthanks.*; **;
      *onlinemalwarescanner.*; *pandasecurity.*; *precisesecurity.*;
      *sunbeltsoftware.*; *threatexpert.*; *trendmicro.*;
      *virusbuster.nprotect.*; *viruschief.*; *virustotal.*

 Miscellaneous Accesses internet resources:

 File details Programming language:
The malware program was written in MS Visual C++.

Description inserted by Andrei Ilie on Wednesday, August 31, 2011
Description updated by Andrei Ilie on Friday, September 2, 2011

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