| Alias: | --- |
| Strain: | ANTI Virus Strain |
| detected when: | --- |
| where: | USA |
| Classification: | Link virus |
| Length: | 1144 Bytes |
Preconditions | |
| Operating System(s): | MacOS proprietary |
| Version/Release: | all versions |
| Computer model(s): | Apple Macintosh: all models |
| Caroname: | ANTI.B |
Attributes | |
| Easy identification: | The strings "ANTI" and "#000001" can be found in the CODE 1 resource |
Type of Infection: | All those having a CODE 0 and 1 resource with size of old CODE 1 + virus <= 32768 bytes. |
| Infection Technique: | CODE 1 is increased by 1144 bytes |
| Infection Trigger: | Running an infected application to get in memory. Use of OpenResFile. |
| Storage Media affected: | |
| Interrupts hooked: | OpenResFile, MountVol |
| Stealth: | |
| Tunneling/Selfprot: | |
| Oligo/Polymorphism: | |
| Encoding Method: | |
| Damage: | If MountVol is called for a disk drive, this virus searches the first sector of track 16 for the string $16+"%%S" at offset 8 from begin of sector (works only on 400K and 800K floppies); if this string is found, virus executes the code in that sector via JSR call. (No such code has been discovered until classification date) |
| Damage Trigger: | Invocation of MountVol |
| Particularities: | --- |
| Similarities: | ANTI A, ANTI Variant |
Agents | |
| Countermeasures: | Use an anti-viral product (public domain or commercial) such Disinfectant, Interferon, Virus detective or VirusRx to scan for virus signature. |
| Standard means: | |
Acknowledgements | |
| Location: | Virus Test Center, University Hamburg, Germany |
| Classification by: | Ronald Greinke |
| Documentation by: | Ronald Greinke |
| Date: | 17-December-1991 |
| Information Source: | --- |
(c) 1996 Virus-Test-Center, University of Hamburg