Zafi.C is a variant of the Zafi mass-mailing worm family. This worm sends email messages with infected attachments in several different languages.
The payload of Zafi.C is a Distributed Denial-of-Service attack against google.com, microsoft.com and www.miniszterelnok.hu.
Depending on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the suspect file, or ask you for a desired action.
More information on the scanning and removal options available in your F-Secure product can be found in the Help Center.
You may also refer to the Knowledge Base on the F-Secure Community site for more information.
When the worm's file is run, it copies itself as 'svchost.com' to Windows System folder and creates a startup key for this file in the Registry:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run] "_svchost.con" = "%SystemDir%\svchost.com"
%SystemDir% represents the Windows System folder name, for example C:\Windows\System32 on Windows XP systems.
Another copy is created in the same directory as 'svchost.con'.
Zafi.C keeps its state information in the registry under
Zafi.C collects email addresses from Windows Address Book and different files (eg. HTM, TXT, MBX, etc). The worm composes the messages it sends based on complex rules in many different languages. The email attachments might have double extensions (composed from .DOC/.TXT and .EXE/.SCR).
The payload of Zafi.C is a Distributed Denial-of-Service attack against
google.com microsoft.com www.miniszterelnok.hu
Detection for this malware was published on October 27th, 2004 in the following F-Secure Anti-Virus updates:
Detection Type: PC