Class
Trojan
Platform
IRC

Parent class: TrojWare

Trojans are malicious programs that perform actions which are not authorized by the user: they delete, block, modify or copy data, and they disrupt the performance of computers or computer networks. Unlike viruses and worms, the threats that fall into this category are unable to make copies of themselves or self-replicate. Trojans are classified according to the type of action they perform on an infected computer.

Class: Trojan

A malicious program designed to electronically spy on the user’s activities (intercept keyboard input, take screenshots, capture a list of active applications, etc.). The collected information is sent to the cybercriminal by various means, including email, FTP, and HTTP (by sending data in a request).

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Platform: IRC

No platform description

Description

Technical Details

This Trojan horse is a self-extracting package that installs a program to attack IRC clients. The Trojan then installs to the system the Serv-U FTP server in a configuration that shares a C: drive on the victim PC for full access. The Trojan also registers a Serv-U FTP server in the WIN.INI file in the auto-run section.

Because of a bug, the Trojan works only when Windows is installed in the C:WINDOWS directory. The Trojan also does not work under WinNT and Win2000.

To remove the FTP server from the computer, it is necessary to remove the "load=closew" from the [windows] section in the WIN.INI file and to delete the files:

AJOUT.INI
CLOSEW.BAT
INSTLL.BAT
RUNDLLS.EXE
SERV-U.INI

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