AMIGA FREAK Virus (31-January-1992)
Entry...............: AMIGA FREAK Virus
Alias(es)...........: ---
Virus Strain........: BYTE BANDIT Virus Strain
Virus detected when.: January 1990
              where.: Elmshorn, Germany
Classification......: system virus (bootblock), resident
Length of Virus.....: 1. length on storage medium: 1,024 byte
                      2. length in RAM           : 1,024 byte
--------------------- Preconditions ----------------------------------
Operating System(s).: AMIGA-DOS
Version/Release.....: 1.2/33.166, 1.2/33.180, 1.3/34.20
Computer model(s)...: AMIGA 500, AMIGA 1000, AMIGA 2000A, AMIGA 2000B
                         (and only with those memory expansions of
                          $0C000000 type)
--------------------- Attributes -------------------------------------
Easy Identification.: typical text: "      The AMIGA Freak
                                      copys :"
Type of infection...: system infection: RAM resident, reset resident,
                                        bootblock infection
Infection Trigger...: reset (CONTROL+Left-AMIGA+Right-AMIGA)
                      operation: any disk access
Media affected......: only floppy disks (3.5" and 5.25")
Interrupts hooked...: vertical blank interrupt
Damage..............: Permanent damage: overwriting bootblock, maybe
                         destroying opened files when screen and key-
                         board are shut off and user has to restart
                         system using CONTROL+LEFT-AMIGA+RIGHT-AMIGA
                      Transient damage: Screen buffer manipulation: 
                         screen becomes dark, keyboard seems to mal-
                         function. Transient damage may be released
                         by pressing a special key combination:
                         LEFT-ALT+LEFT-AMIGA (on newer AMIGAS, the 
                         COMMODORE key)+SPACE+RIGHT-AMIGA+RIGHT ALT 
                         (but virus will still be active)
Damage Trigger......: Permanent damage: reset; any disk access
                      Transient damage: only under following condition:
                         2 resets AND 6 infections AND execution of 
                         BYTE BANDIT's own interrupt routine 5,208 
                         times (approx. 7 minutes)
Particularities.....: uses StartIOVector; other resident programs using
                         the system resident list (KickTagPointer, 
                         KickMemPointer) are shut down;
                      Copy counter: 19th word
Similarities........: BYTEBANDIT virus strain
--------------------- Agents -----------------------------------------
Countermeasures.....: Names of tested products of Category 1-6:
                      Category 1: .2 Monitoring System Vectors:
                                     CHECKVECTORS 2.2
                                  .3 Monitoring System Areas:
                                     CHECKVECTORS 2.2,GUARDIAN 1.2,
                                     VIRUSX 4.0
                      Category 2: Alteration Detection: --
                      Category 3: Eradication: CHECKVECTORS 2.2,
                                               VIRUSX 4.0
                      Category 4: Vaccine: ---
                      Category 5: Hardware Methods: ---
                      Category 6: Cryptographic Methods: ---
Countermeasures successful: CHECKVECTORS 2.2,GUARDIAN 1.2,VIRUSX 4.0
Standard means......: CHECKVECTORS 2.2
--------------------- Acknowledgement --------------------------------
Location............: Virus Test Center, University Hamburg, FRG
Classification by...: Wolfram Schmidt
Documentation by....: Wolfram Schmidt
Date................: 31-OCTOBER-1991
Information Source..: ---

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