VLAD.Tasha.2033
Description VLAD.Tasha.2033
This is a dangerous memory-resident encrypted parasitic virus. It hooks INT 21h and writes itself to the end of COM and EXE files that are accessed. The EXE files are infected incorrectly, they halt the system being executed. In some cases the virus also hooks INT 14h (COM port), and on some calls (BBS login?) it displays the message:
XXXXXXXX xXXXXXx xXXXXXx XXX XX xXXXXXXx XX XX xXXXXXXx XXXXXXxx
xXx XXxxxXX XXxxxx XXXxxxXX XXxxxxXX XXxx xXX XXxxxxXX XX XXX
xXx XXxxxXX xxxxXX XXXxxxXX XXxxxxXX xXXXXx XXxxxXXX XXXXXX
xXx XX XX xXXXXXXx XX XX XX XXX xXx XX XX XXX xXX
Proudlyy Presentedd by Quantuum
It also contains the string:
[Tasha Yar] by Quantum / VLAD
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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".
DSCE-based viruses
Description DSCE-based viruses
It is a harmless memory resident parasitic virus. It hooks INT 21h and writes itself to the end of COM and EXE files that are executed. It contains the text string:
This is a DSCE's Demo Virus written by [P.F]
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