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Virus:Worm/IrcBot.93327
Date discovered:05/04/2010
Type:Worm
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low to medium
Damage Potential:Medium
Static file:Yes
File size:93.327 Bytes
MD5 checksum:ca4abcc5694825fc39112b0b851307d1
IVDF version:7.10.06.25 - Monday, April 5, 2010

 General Aliases:
   •  Panda: W32/OscarBot.XW
   •  Eset: IRC/SdBot
   •  Bitdefender: Trojan.Generic.3622232


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


Side effects:
   • Downloads a malicious file
   • 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.




It tries to download a file:

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:
   • 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\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"



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"



The following registry key is changed:

[HKCU\Software\Microsoft\Internet Explorer\Main]
   New value:
   • "Start Page"="http://www.gllod.com"

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

Server: sls.e2d**********.net
Port: 2345
Channel: #imb
Nickname: NEW-[USA|00|P|%number%]

说明添加者: Petre Galan 打开 2010年6月28日星期一
说明更新者: Petre Galan 打开 2010年6月28日星期一

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