RZ.160
Description RZ.160
It is a dangerous memory resident parasitic virus. Being executed it copies itself into the memory at the address 6000:0000 and does not fix MCB list, that can halt the computer). Then it hooks INT 21h and writes itself to the beginning of COM files that are executed. The infected files contain the word "RZ" at their beginning.
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MMAND.2048
Description MMAND.2048
It is a harmless memory resident parasitic virus. It hooks INT 21h and writes itself to the end of COM and EXE files (except COMMAND.COM) that are executed. The virus contains the text string: "MMAND.COM", this is the only reason to name that virus.
MMCA.505
Description MMCA.505
These are memory resident parasitic viruses. They hook INT 21h and infect COM and EXE files that are executed. They contain texts in Russian. MMCA.505,882 These are harmless viruses, they do not manifest themselves in any way. They write themselves to the end of COM and EXE files. MMCA.1131 It is encrypted virus. It writes itself into the middle of COM and EXE files. The virus has a bug, and it can halt the system while infecting a file, or corrupt the file.
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