Threat Description



Aliases:Apher, TrojanDownloader.Win32.Apher.gen, Backdoor.Death.25.gen
Category: Malware
Platform: W32


A new trojan Apher has been found on August 20th, 2002.


Automatic action

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.


You may wish to refer to the Support Community for further assistance. You also may also refer to General Removal Instructions for a general guide on alternative disinfection actions.

Technical Details

It was distributed in email messages as follows:

 Subject:Protect Your NetWare with
KasperskyTM Anti-Virus
 "Kaspersky Labs, an international data-security software
 developer, announces the official release of Kaspersky
 Anti-Virus  4.0. "We are pleased to present the latest
 version of our anti-virus product. The unique technology,
 updated design, and perfected administering system integrated
 into Kaspersky Anti-Virus 4.0 is the result of many years
 of work dedicated to improving the ease of working with
 the program and increasing computer defense reliability,"
 said Natalya Kaspersky, Kaspersky Labs CEO. The new Kaspersky
 Anti-Virus version (Personal Pro, Personal, Lite) fully
 supports the Microsoft Windows XP operating system. Amongst
 this versions latest innovations are: a complete user interface
 upgrade corresponding to Tree Chart technology; perfected system
 installation that allows for the saving the configuration of
 previously installed versions, and a quarantine feature for
 isolating infected and suspicious objects; expanded treatment of
 infected archived files; an added function for the treatment of
 Microsoft Outlook Express and objects upon system start up and
 also a memory scanning of active applications; and simplified
 operating features for disk recovery.
 Best regards,
 If you have any questions
 please call
 +1(866) 7280-290"
 Attachment: AAPRICES.EXE

Once the attachment is executed it downloads and silently executes from a Russian web site a file Slnew.exe. This file is new variant of Backdoor.Death.25. The backdoor provides access to the compromised computer for a remote attacker.


F-Secure Anti-Virus detects Apher Death.25 with the update published on August 20th, 2002:
Detection Type: PC
Database: 2002-08-20_01

Description Created: Analysis: Katrin Tocheva, Gergely Erdelyi and Ero Carrera; F-Secure Corp.; August 20th, 2002


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