Virus Database

AsmVir Family

Description AsmVir Family

These viruses search for .ASM files and overwrite them with virus' hexadecimal dump. While overwriting the viruses add to this dump the assembler instructions that allow to compile and link infected .ASM files:
;~ <- virus ID
casmseg segment
assume cs:casmseg,ds:casmseg,ss:casmseg
org 100h
.radix 10
start:
db all <- virus hex dump
db ...
casmseg ends
end start

Being compiled and linked infected .ASM files can spread the virus.
The viruses also contain the text:
ASMVirus by Qark/VLAD042

Check other viruses! Be aware! Use Antiviral Software

Delta.1117

Description Delta.1117

These are dangerous memory resident encrypted parasitic viruses. They hook INT 21h and write themselves to the end of .COM and .EXE files that are executed or opened. On November 4th the viruses erase several fields in the CMOS memory, display the message and reboot the computer:
Good bytes from (DEL)ta Virus !!!
Reset in 30 seconds !

The viruses also contain the text:
Brazil - 02/96

Delta_II.1006

Description Delta_II.1006

It is a harmless memory resident parasitic virus. It hooks INT 21h and writes itself to the end of .COM and .EXE files that are accessed. The virus does not infect anti-virus programs: SCAN, WSCAN, VSHIELD, TBAV, F-PROT, VSAFE, CPAV, TOOLKIT. The virus contains the text string:
Delta Forever X SCAN.WSCANVSHIETBAV.F-PROVSAFECPAV.TOOLK - July/97.

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