Stink Family
Description Stink Family
These are dangerous nonmemory resident parasitic viruses. They search for .COM files of the current directory and write themselves to the beginning and to the end of the file:
+-------+ +-------+
¦ File ¦---+ ¦Virus ¦ - the first part of the virus
¦- - - -¦ ¦ +-------¦
¦ ¦ ¦ ¦ File ¦
¦ ¦ ¦ ¦ ¦
+-------+ ¦ ¦- - - -¦
+->¦ ¦
+-------¦
¦Virus ¦ - the second part of the virus
¦ ¦
+-------+
These viruses hooksINT 24h in wrong way and halt the system while infecting a file on a write-protected disk. These infectors contain the string "*.COM.COMMAND".
The viruses check the system time, and if the value of seconds is equal to the value of minutes, the viruses with the probability of 1/4 display the messages:
"Stink.1252,1254,1283": StinkFoot has arrived on your PC !
"Stink.1270,1283.b": StinkFoot: 'Eat this Paul Ducklin'
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Mordor.538
Description Mordor.538
This is a harmless memory resident parasitic virus. It hooks INT 21h and writes itself to the beginning of COM files (except COMMAND.COM) that are executed.
The virus does not manifest itself.
Morgan.470
Description Morgan.470
This is a benign non-memory resident parasitic virus. It searches for .COM files, then writes itself to the end of the file. On July 26 and December 6 ,it displays the following message:
You have been infected by a living MORGANISM
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