This is a virus detection. Viruses are programs that self-replicate recursively, meaning that infected systems spread the virus to other systems, which then propagate the virus further. While many viruses contain a destructive payload, it's quite common for viruses to do nothing more than spread from one system to another.
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Minimum DAT
4323 (2004-02-11) Updated DAT5021 (2007-05-01) |
Minimum Engine
5.1.00 File LengthVaries |
Description Added
2004-04-15 Description Modified2004-06-24 |
--Update 06/24/2004
An incorrect identification of some modified ASPacked files as W32/Gaobot.worm.gen.e has been identified in the 4368 DAT files. The 4369 DAT files are being released to resolve this incorrect identification.
The following files have been submitted to AVERT
Dcpp.exe, from securstar.com
Server.exe - access-remote-pc.com
SlingoDeluxe.exe - Shockwave.com
Armadillo.exe - The Silicon Realms Toolworks
GE2001.exe - Xinox Software
MagicInlay.exe, from shockwave.com
SBautoupdate.exe, from javacoolsoftware.com
HotfixManager.exe, from majorgeeks.com
Timesheets.exe, from timesheetsmts.com
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This is a generic detection for worms in the W32/Gaobot.worm family. Though first introduced in the 4238 DATs. At the time of this writing, there are more than 900 variants of this virus in existence. The source code for Gaobot was posted to various websites resulting in many new variants being created each week. Therefore, this description is merely meant as a guide.
For maximum protection against this threat, users are recommended to:
Recent variants in this family are intended to take advantage of high profile exploits. For example:
Other exploited vectors include:
The virus contains lots of remote access functionality, including:
The following details will vary from variant to variant.
When run, this virus copies itself to the %SysDir% directory as explored.exe and creates several registry run keys in order to load itself at system startup.
(Where %SysDir% is the System directory, for example: C:\WINNT\SYSTEM32)
The virus also installs itself as a system service named Windows Login . The following registry keys may created:
The virus attempts to run a speed test for Internet connectivity. The following domains are contacted to check for broadband connections:
The virus attempts to connect to an Internet Relay Chat server (TCP Port 6667) to allow for a remote attack to send commands to the infected system:
Infected systems list on TCP ports 14985, and 15318, which are control ports for attackers to exploit. The worm references the NetScheduleJob API call and may create remote Scheduled Tasks on infected systems.
The local HOSTS file (%SysDir%\drivers\etc\hosts) is overwriten to block access to the following sites:
It also attempts to terminate the following processes:
This worm propagates via accessible or poorly secured network shares, and is intended to take advantage of high profile exploits:
When it attempts to spread through default administrative shares:
The worm contains a list of common user-names and passwords. This list contains typical poor username/password combinations. Users should avoid securing shares with passwords containing key sequences such as:
The worm also tries to steal information from the system, such as:
All Users
: