BAT.PolyBa
Details
BAT.PolyBat
This is a not dangerous nonmemory resident polymorphic BAT virus. It writes itself to the end of the files. When executed it searches for .BAT files in current, parent, current C: drive and root C: directories, then in all PATH directories and infect one batch file that is found.
The virus uses polymorphic BAT engine similar to the “Batalia6″ virus - it compresses itself with PKZIP and password, and adds to its entry code “junk” strings.
The virus displays the text:
(: PolyBat Morpher 
While infecting a file the virus uses external DOS command and utilities: PKZIP, PKUNZIP, ATTRIB, FIND, and fails to infect the files if there are no such programs in PATH.
Related Posts