Content
Generic!atr
- Type
- Trojan
- SubType
- Configuration file
- Discovery Date
- 01/31/2007
- Length
- varies
- Minimum DAT
- 4953 (01/31/2007)
- Updated DAT
- 5806 (11/18/2009)
- Minimum Engine
- 5.1.00
- Description Added
- 01/31/2007
- Description Modified
- 06/27/2007 1:27 AM (PT)
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Characteristics
This is a generic detection for a configuration text file (autorun.inf) used by many worms. This file is usually dropped onto the root of all removable drivers and mapped drives in an attempt to autorun an executable when the drive is accesed.
The size for this file varies. The size differs based on the length of the filename being referenced inside the .inf file.
Some copies of this file has the System (S) and Hidden (H) attributes present in attempt to hide the file from certain, default, viewing options within Windows Explorer.
The contents of the file are similar to the following:
[Autorun]
open=<WORM>.exe
shellexecute=<WORM>.exe
shell\Auto\command=<WORM>.exe
Symptoms
The presence of autorun.inf files on the root of all removable drives or mapped network drives containing information similar to that described in the "Characteristics" section.
Method of Infection
Infection starts either with manual execution of the binary or by navigating to folders containing infected files whereby the autorun.inf files can cause auto-execution.
Removal
A combination of the latest DATs and the Engine will be able to detect and remove this threat. AVERT recommends users not to trust seemingly familiar or safe file icons, particularly when received via P2P clients, IRC, email or other media where users can share files.
Variants
Variants
N/A
All Information
Overview -
This is a generic detection for a configuration text file (autorun.inf) used by many worms. This file is usually dropped onto the root of all removable drivers and mapped drives in an attempt to autorun an executable when the drive is accesed.
Characteristics
Characteristics -
This is a generic detection for a configuration text file (autorun.inf) used by many worms. This file is usually dropped onto the root of all removable drivers and mapped drives in an attempt to autorun an executable when the drive is accesed.
The size for this file varies. The size differs based on the length of the filename being referenced inside the .inf file.
Some copies of this file has the System (S) and Hidden (H) attributes present in attempt to hide the file from certain, default, viewing options within Windows Explorer.
The contents of the file are similar to the following:
[Autorun]
open=<WORM>.exe
shellexecute=<WORM>.exe
shell\Auto\command=<WORM>.exe
Symptoms
Symptoms -
The presence of autorun.inf files on the root of all removable drives or mapped network drives containing information similar to that described in the "Characteristics" section.
Method of Infection
Method of Infection -
Infection starts either with manual execution of the binary or by navigating to folders containing infected files whereby the autorun.inf files can cause auto-execution.
Removal -
Removal -
A combination of the latest DATs and the Engine will be able to detect and remove this threat. AVERT recommends users not to trust seemingly familiar or safe file icons, particularly when received via P2P clients, IRC, email or other media where users can share files.
Additional Windows ME/XP removal considerations
Variants
Variants -
N/A
