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Virus:TR/Inject.TM.5
Date discovered:09/01/2009
Type:Trojan
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low to medium
Damage Potential:Medium
Static file:Yes
File size:101.006 Bytes
MD5 checksum:5c1845e4c56576b0f171b52423a9f8c3
IVDF version:7.01.01.94 - Friday, January 9, 2009

 General Method of propagation:
   • Messenger


Aliases:
   •  Panda: W32/OscarBot.YH.worm
   •  Eset: IRC/SdBot
   •  Bitdefender: Worm.IM.Agent.M


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


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

 Files It copies itself to the following locations:
   • %WINDIR%\infocard.exe
   • %WINDIR%\infocard.exb



It deletes the initially executed copy of itself.



The following files are created:

%WINDIR%\mds.sys
%WINDIR%\mdt.sys
%WINDIR%\winbrd.jpg



It tries to download some files:

– The location is the following:
   • http://get.articleslinked.com/**********


– The location is the following:
   • http://browseusers.myspace.com/Browse/**********




It tries to executes the following files:

– Filename:
   • net stop MsMpSvc


– Filename:
   • net1 stop MsMpSvc


– Filename:
   • net stop wuauserv


– Filename:
   • net1 stop wuauserv


– Filename:
   • sc config wuauserv start= disabled


– Filename:
   • netsh firewall add allowedprogram 1.exe 1 ENABLE


– Filename:
   • "%WINDIR%\infocard.exe"


– Filename:
   • explorer.exe http://browseusers.myspace.com/Browse/Browse.aspx

 Registry The following registry keys are added in order to run the processes after reboot:

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "Firewall Administrating"="%WINDIR%\infocard.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Terminal Server\
   Install\Software\Microsoft\Windows\CurrentVersion\Run]
   • "Firewall Administrating"="%WINDIR%\infocard.exe"

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "Firewall Administrating"="%WINDIR%\infocard.exe"



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

– [HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\
   FirewallPolicy\StandardProfile\AuthorizedApplications\List]
   • "%executed file%"="%WINDIR%\infocard.exe:*:Enabled:Firewall
      Administrating"

 Messenger It is spreading via Messenger. The characteristics are described below:

– Yahoo Messenger

The URL then refers to a copy of the described malware. If the user downloads and executes this file the infection process will start again.

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

Server: mile.dbs**********.com
Port: 2345
Channel: #imb
Nickname: NEW-[USA|00|P|%number%]

Descrição enviada por Petre Galan em terça-feira, 29 de junho de 2010
Descrição atualizada por Petre Galan em terça-feira, 29 de junho de 2010

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