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Amiga Virus Encyclopedia
Incognito Virus
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====== Computer Virus Catalog 1.2: INCOGNITO Virus (20-FEB-1993) =======
Entry...............: INCOGNITO Virus
Alias(es)...........: MT = TROJAN = DIRTY TRICKS Virus
Virus Strain........: ---
Virus detected when.: ---
              where.: ---
Classification......: System virus (bootblock), resident
Length of Virus.....: 1. Length on storage medium: 1024 byte
                      2. Length in RAM:            1172 byte
--------------------- Preconditions ------------------------------------
Operating System(s).: AMIGA-DOS
Version/Release.....: 1.2/33.166, 1.2/33.180
Computer model(s)...: all models
--------------------- Attributes ---------------------------------------
Easy Identification.: ---
Type of infection...: RAM resident, reset resident, bootblock
Infection Trigger...: INT[5] = vertical blank interrupt
Storage media affected: Only floppy disks (3.5" and 5.25")
Interrupts hooked...: INT[5] = vertical blank interrupt
Damage..............: Overwriting bootblock
Damage Trigger......: INT[5] = vertical blank interrupt
Particularities.....: Changes DoIO vector
Similarities........: ---
--------------------- Agents -------------------------------------------
Countermeasures.....: GUARDIAN 1.2, VIRUSX 4.0, VIRUSCONTROL 2.0
Countermeasures successful: GUARDIAN 1.2, VIRUSX 4.0, VIRUSCONTROL 2.0
Standard means......: VIRUSCONTROL 2.0
--------------------- Acknowledgement ----------------------------------
Location............: Virus Test Center, University Hamburg, FRG
Classification by...: Karim Senoucci, Soenke Freitag
Documentation by....: Karim Senoucci, Soenke Freitag
Date................: 14th DECEMBER 1992
Information Source..: Original Virus Analysis
===================== End of INCOGNITO Virus ===========================

Antivirus...........: Kickstart 1.2 & 1.3 : VT-Schutz v3.17
                      Kickstart all others: VirusZ III v1.04B or higher, and also Xvs.library v33.47 or higher


Ascii of Incognito Bootblock virus: