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Psr.100 Viruses Information
| Name: |
Psr.100 |
| Category: |
Viruses |
| Description:
|
Details
Psr.1000
It is not a dangerous memory resident encrypted parasitic virus. It hooks INT 21h and writes itself to the end of COM and EXE files that are executed or searched. The virus places a transition command (code E8 xxxx - CallVirus) directly into the host file entry point and does not modify the file header:
File: Infected file:
+--------------+ +--------------+
|Header | |Header |
|--------------| |--------------|
|Program code |<-entry point |Program code |>--+<-entry point
| | | | |
+--------------+ |--------------| |
|Virus body |<--+
+--------------+
The virus contains the text string:
[PSR.OMG.ROAKMNEEDS TBAYM ] |
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