DS.512.a
Description DS.512.a
It's a dangerous memory resident parasitic stealth virus. It installs itself in system memory without correction of system memory blocks, which can cause a system crash. Then the virus hooks INT 13h (for stealth routine), INT 21h (for infection routine) and hits COMMAND.COM file. Then it writes itself into the middle of COM- and EXE-files that are executed. It infects some files incorrectly, they halt the system on execution. It contains the internal string: "DS".
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Crawler.545
Description Crawler.545
These are harmless nonmemory resident encrypted parasitic viruses. They search for .COM files except COMMAND.COM, then write themselves to the end of the file. The viruses do not manifest themselves in any way, they contain the text strings:
Thank God for the bomb
Night Crawler <Phalcon/Skism>, 11/1995
PS*.COM
Crawly.6624
Description Crawly.6624
It's a not dangerous not memory resident companion virus that searches for .EXE-files and creates the companion .COM-files which contain the virus body. Sometimes it plays the tune and types: "The Creepy Crawly".
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