Full description

Virus:	Worm/Agent.81920.A
Date discovered:	16/07/2010
Type:	Worm
In the wild:	Yes
Reported Infections:	Low to medium
Distribution Potential:	Low
Damage Potential:	Medium
Static file:	Yes
File size:	80.896 Bytes
MD5 checksum:	aee2c1e9467fa483099e673a0f55f4fc
VDF version:	7.10.04.21
IVDF version:	7.10.09.108 - Friday, July 16, 2010

General Aliases:
   • Mcafee: W32/Pushbot
   • Kaspersky: Backdoor.Win32.IRCBot.pso
   • Sophos: Mal/Rimecud-D
   • Bitdefender: Trojan.Generic.4494128
   • Panda: W32/LoLbot.N.worm
   • GData: Trojan.Generic.4494128

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

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

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 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 http://browseusers.myspace.com/Browse/Browse.aspx

– 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\
   Install\Software\Microsoft\Windows\CurrentVersion\Run]
   • "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\
   FirewallPolicy\StandardProfile\AuthorizedApplications\List]
   • "%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: 210.170.**********.115
Port: 2345
Channel: #!gf!
Nickname: NEW-[USA|00|P|%number%]

Stealing It tries to steal the following information:
– Recorded passwords used by the AutoComplete function

– Passwords from the following programs:
• Mozilla Firefox
• Internet Explorer

Miscellaneous Accesses internet resources:
   • http://browseusers.myspace.com/Browse/**********
   • http://200.223.159.82/**********

Mutex:
It creates the following Mutex:
   • Micro Upe

File details Programming language:
The malware program was written in Delphi.

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

说明添加者： Petre Galan 打开 2011年3月25日星期五
说明更新者： Petre Galan 打开 2011年3月25日星期五

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