Parent class: VirWare
Viruses and worms are malicious programs that self-replicate on computers or via computer networks without the user being aware; each subsequent copy of such malicious programs is also able to self-replicate. Malicious programs which spread via networks or infect remote machines when commanded to do so by the “owner” (e.g. Backdoors) or programs that create multiple copies that are unable to self-replicate are not part of the Viruses and Worms subclass. The main characteristic used to determine whether or not a program is classified as a separate behaviour within the Viruses and Worms subclass is how the program propagates (i.e. how the malicious program spreads copies of itself via local or network resources.) Most known worms are spread as files sent as email attachments, via a link to a web or FTP resource, via a link sent in an ICQ or IRC message, via P2P file sharing networks etc. Some worms spread as network packets; these directly penetrate the computer memory, and the worm code is then activated. Worms use the following techniques to penetrate remote computers and launch copies of themselves: social engineering (for example, an email message suggesting the user opens an attached file), exploiting network configuration errors (such as copying to a fully accessible disk), and exploiting loopholes in operating system and application security. Viruses can be divided in accordance with the method used to infect a computer:- file viruses
- boot sector viruses
- macro viruses
- script viruses
Class: P2P-Worm
P2P Worms spread via peer-to-peer file sharing networks (such as Kazaa, Grokster, EDonkey, FastTrack, Gnutella, etc.). Most of these worms work in a relative simple way: in order to get onto a P2P network, all the worm has to do is copy itself to the file sharing directory, which is usually on a local machine. The P2P network does the rest: when a file search is conducted, it informs remote users of the file and provides services making it possible to download the file from the infected computer. There are also more complex P2P-Worms that imitate the network protocol of a specific file sharing system and responds positively to search queries; a copy of the P2P-Worm is offered as a match.Read more
Platform: Win32
Win32 is an API on Windows NT-based operating systems (Windows XP, Windows 7, etc.) that supports execution of 32-bit applications. One of the most widespread programming platforms in the world.Description
Technical Details
Hofox is a worm that spreads via P2P networks. Hofax is a Windows PE exe file; written in Visual Basic; about 49K in size.During launch, the worm blocks the Norton Antivirus Auto Protect Service
Installation
Hofax registers itself as a launched application in the system registry key:
HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionRunwormIt then copies itself into:
C:My shared folder under the following names:
Norton Anti-Virus 2004.exe
How To Hack.doc.exe
Win XP Pro .exe
Windows Longhorn full beta version.exe
Norton Anti-Virus keygen.exe
Hotmail H4x0r.exe
Halo - Combat Evolced.exe
DivX Pro .exe
Super Encrypt.exe
PornViewer.exe
Panda internet security.exe
Paint Shop Pro 8.exe
Paint Shop Pro 9 beta.exe
McAfee Anti-Virus.exe
C:WindowsSystem32 under the following names:
Norton Anti-Virus.exe
Halo.exe
Dunno.exe
Your Ad Here.exe
Girls Peeing.exe
Hacking is fun.exe
Program FilesAccessories/Your Gay.exe
Manifestations
Launches:- charmap.exe and notepad.exe
- Internet Explorer and connects to: http://www.ratemypoo.com
Destructive behaviour
Deletes files with the following extensions:- *.jpg
- *.gif
- *.mov
- *.mpg
- *.mpeg
- *.avi
- *.doc
- *.txt,/ul>
Read more
Find out the statistics of the vulnerabilities spreading in your region on statistics.securelist.com
Found an inaccuracy in the description of this vulnerability? Let us know!