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Date discovered:29/06/2010
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low to medium
Damage Potential:Medium
Static file:Yes
File size:73.216 Bytes
MD5 checksum:9acab14ac79cb554e8a62261982ca896
IVDF version:

 General Aliases:
   •  Bitdefender: Worm.P2P.Palevo.FM
   •  Panda: W32/MailWorm.P.worm
   •  Eset: IRC/SdBot

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

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

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

It deletes the initially executed copy of itself.

It tries to download a file:

– The location is the following:

It tries to execute the following files:

– Filename:
   • net stop MsMpSvc

– Filename:
   • net1 stop MsMpSvc

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

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

– Filename:
   • explorer.exe

– Filename:
   • %WINDIR%\jusched.exe

– Filename:
   • net stop wuauserv

– Filename:
   • sc config wuauserv start= disabled

– Filename:
   • net1 stop wuauserv

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

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "Java developer Script Browse"="%WINDIR%\jusched.exe"

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Terminal Server\
   • "Java developer Script Browse"="%WINDIR%\jusched.exe"

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "Java developer Script Browse"="%WINDIR%\jusched.exe"

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

– [HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\
   • "%executed file%"="%WINDIR%\jusched.exe:*:Enabled:Java
      developer Script Browse"

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

Server: 202.157.17**********.20
Port: 2345
Channel: #!gf!
Nickname: NEW-[USA|00|P|%number%]

 File details Runtime packer:
In order to aggravate detection and reduce size of the file it is packed with a runtime packer.

Description inserted by Petre Galan on Monday, September 20, 2010
Description updated by Petre Galan on Monday, September 20, 2010

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