| Alias: | --- |
| Strain: | --- |
| detected when: | October 1988 |
| where: | Helmond (Netherlands) |
| Classification: | Bootsector Virus |
| Length: | 512 Bytes |
Preconditions | |
| Operating System(s): | Atari TOS |
| Version/Release: | All versions |
| Computer model(s): | All Atari ST |
| Caroname: | Anti-2 |
Attributes | |
| Easy identification: | "This Anti-Virus beeps" can be found in the bootsector at Byte Nr. $1E, or in memory at Dskbufp+$600+$1E. |
Type of Infection: | Any non-executable Bootsector will be overwritten |
| Infection Technique: | |
| Infection Trigger: | Execution of BIOS disk function Getbpb. |
| Storage Media affected: | Any kind of media. |
| Interrupts hooked: | hdv_bpb vector (used by BIOS disk functions). |
| Stealth: | |
| Tunneling/Selfprot: | |
| Oligo/Polymorphism: | |
| Encoding Method: | |
| Damage: | --- |
| Damage Trigger: | --- |
| Particularities: | The Program can be used as an anti-virus. If the bootsector is executable, the program produces a sound and the screen flashes. |
| Similarities: | --- |
Agents | |
| Countermeasures: | Make sure that the virus is not in memory. Modify the last byte in bootsector to another value. |
| Standard means: | |
Acknowledgements | |
| Location: | Virus Test Center, University of Hamburg, FRG |
| Classification by: | Andre' Schaper |
| Documentation by: | Andre' Schaper |
| Date: | 5-June-1990 |
| Information Source: | George R. Woodside |
(c) 1996 Virus-Test-Center, University of Hamburg