Virus:Worm/LovGate.X.1
Date discovered:15/05/2006
Type:Worm
In the wild:Yes
Reported Infections:Low
Distribution Potential:Medium
Damage Potential:Low
Static file:Yes
File size:23.552 Bytes
MD5 checksum:5d279f9a47a257d2804a926064d446c4
VDF version:6.34.01.85
IVDF version:6.34.01.86

 General Method of propagation:
   • Local network


Aliases:
   •  Kaspersky: Email-Worm.Win32.LovGate.x
   •  Sophos: W32/Lovgate-V
   •  VirusBuster: I-Worm.Lovgate.AP6
   •  Eset: Win32/Lovgate.Z
   •  Bitdefender: Win32.Lovgate.V@mm


Platforms / OS:
   • Windows 95
   • Windows 98
   • Windows 98 SE
   • Windows NT
   • Windows ME
   • Windows 2000
   • Windows XP
   • Windows 2003


Side effects:
   • Registry modification
   • Makes use of software vulnerability

 Files It copies itself to the following location:
   • %SYSDIR%\spollsv.exe

 Registry The following registry key is added in order to run the process after reboot:

– HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
   • "Shell Extension"="%SYSDIR%\spollsv.exe"

 Network Infection In order to ensure its propagation the malware attemps to connect to other machines as described below.


Exploit:
It makes use of the following Exploit:
– MS03-026 (Buffer Overrun in RPC Interface)


IP address generation:
It creates random IP addresses while it keeps the first three octets from its own address. Afterwards it tries to establish a connection with the created addresses.


Infection process:
Creates an FTP script on the compromised machine in order to download the malware to the remote location.

 Backdoor The following port is opened:

– %SYSDIR%\spollsv.exe on a random TCP port in order to provide an FTP server.

Description inserted by Irina Boldea on Friday, September 15, 2006
Description updated by Irina Boldea on Monday, September 18, 2006

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