Backdoor.Agobot.a
Description Backdoor.Agobot.a
Backdoor.Agobot (also known as PhatBot) is a Trojan program which provides the author/ user with remote access to the victim machine. It is managed via IRC. It has a wide range of functionalities:
will not work with a debugger running or under Vmware
it can run both as a standard application and as a service (when running under Windows NT/2000/XP)
when copying itself to the Windows system folder (on first being launched) it attmepts to encode the copy and write the decoder to the body of the copy (polymorphic code)
adds to the HOSTS file the IP address 127.0.0.1 for the sites of some antivirus companies (to hinder the updating of antivirus databases)
monitors the network and copies all interesting packets (e.g. packets containing passwords for FTP servers, e-payment systems such as PayPal etc.)
scans other computers for the presence of common vulnerabilities such as DCOM RPC, UpnP, WebDAV and others, and then installs itself on the vulnerable machine
searches the victim machine for AOL logs, passwords for certain computer games, and email addresses, and sends all this information to its author/ user
conducts DoS attacks (SYN-flood, Targa and others)
launches proxy servers on the victim machine (HTTP, HTTPS, SOCKS, BNC and others)
expedites the uploading of additional modules (plug-ins)
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TalkHead.519
Description TalkHead.519
This is a dangerous non-memory resident parasitic virus. It searches for the files *.COM, A:README.COM, C:DOSCHKDSK.COM, COMMAND.COM, and overwrites them. On Friday, it decrypts and displays the following message:
This ain't no party, this ain't no disco, this ain't no foolin' around!
It also contains the encrypted text:
Copyright (C) 1991 Talking Heads Fan Club
Tally.259
Description Tally.259
It is a harmless nonmemory resident parasitic virus. It searches for .EXE files, then writes itself to the end of the file. The virus does not manifest itself in any way, it contains the text:
*.EXE
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RUNE BRINKS BYGGNADS AB
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