04h Family
Description 04h Family
These are harmless memory resident parasitic viruses. They hook INT 21h. On DOS calls FindFirst (AH=4Eh), they search for COM files and write themselves to the beginning of the file. The viruses contain the encrypted text strings:
"04h.609": 04h Virus, (c) Enrico*.com
"04h.635": 04h Virus*.com
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DM.674
Description DM.674
This virus is not memory-resident, very dangerous. Under some conditions it wipes out the first 80h sectors of the hard disk. The virus bypasses subdirectories of the current disk and writes itself into .COM-files by standard way. Beginnings of infected files become as follows:
MOV BX,offset Virus;
JMP BX;
DB 'DM'.
DMR.1200
Description DMR.1200
This is a benign memory resident encrypted parasitic virus. It was found in-the-wild in January 1998 in the Russian northern port city (see- The Hunt for Red October) of Murmansk. It hooks INT 21h, and writes itself to the end of EXE files that are executed or opened. In some cases, because of an error, the virus corrupts files while infecting them (such files can be disinfected without any problem).
On 13th of any month, the virus displays the message:
DMR, Pantera & Ale Forever !
D M R F o r e v e r !
Dis iz ChaosTraveller ver. 2.0
Nightmare, yeah ? Try to be clean !
Suck off, fucksider ! Today`s 13th !
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