| Alias: | --- |
| Strain: | BYTE BANDIT Virus Strain |
| detected when: | January 1990 |
| where: | Elmshorn, Germany |
| Classification: | system virus (bootblock), resident |
| Length: | 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 wi |
| Caroname: | ByteBandit.Forpib.AmigaFreak |
Attributes | |
| Easy identification: | typical text: " The AMIGA Freak copys :" |
Type of Infection: | system infection: RAM resident, reset resident, bootblock infection |
| Infection Technique: | |
| Infection Trigger: | reset (CONTROL+Left-AMIGA+Right-AMIGA) operation: any disk access |
| Storage Media affected: | only floppy disks (3.5" and 5.25") |
| Interrupts hooked: | vertical blank interrupt |
| Stealth: | |
| Tunneling/Selfprot: | |
| Oligo/Polymorphism: | |
| Encoding Method: | |
| 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: | CHECKVECTORS 2.2,GUARDIAN 1.2,VIRUSX 4.0 |
| Standard means: | CHECKVECTORS 2.2 |
Acknowledgements | |
| Location: | Virus Test Center, University Hamburg, FRG |
| Classification by: | Wolfram Schmidt |
| Documentation by: | Wolfram Schmidt |
| Date: | 31-OCTOBER-1991 |
| Information Source: | --- |
(c) 1996 Virus-Test-Center, University of Hamburg