Virus Database

Formas.1146

Description Formas.1146

This is a relatively harmless non-memory resident parasitic virus. It searches for .COM-files, then writes itself to the end of the file. On Fridays, the virus "drops" letters on the screen, and then displays:
Ez aztán FORMÅS kis gép !?! ( lett )

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BigMouse Family

Description BigMouse Family

These are memory resident encrypted parasitic viruses. They hook INT 21h, and write themselves at the end of EXE-files that are executed. They contain the internal text string "SCANCLEAVIRSF-PRCPAV", and do not infect files with the names from this string (SCAN*.*, CLEA*.*, VIRS*.*, F-PR*.* and CPAV*.*). On November 23rd, "BigMouse.900" displays the following message:
G+A=
Press a key to go on

On the 23rd of every month, "BigMouse.1007" displays:
BigMouse and Anna love each other
Press any key to go on

"BigMouse.998" is a dangerous virus. In April, it overwrites the disk sectors. It contains the internal text string: "-=GC73=-".

BigMouse.998

Description BigMouse.998

This is a dangerous memory resident encrypted parasitic virus. It hooks INT 21h and writes itself at the end of EXE files that are executed. It contains the internal text string "SCANCLEAVIRSF-PRCPAV", and do not infect files with the names from this string (SCAN*.*, CLEA*.*, VIRS*.*, F-PR*.* and CPAV*.*).
In April, it overwrites the disk sectors.
It contains the internal text string:
-=GC73=-

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