| Alias: | --- |
| Strain: | SCA strain |
| detected when: | MAY 1990 (when VTC received virus code) |
| where: | North Germany |
| Classification: | system virus (bootblock), resident |
| Length: | 1. length on storage medium: 1024 byte 2. length in RAM : 1024 byte |
Preconditions | |
| Operating System(s): | AMIGA-DOS |
| Version/Release: | 1.2/33.166, 1.2/33.180 and 1.3/34.20 |
| Computer model(s): | AMIGA 500, AMIGA 1000, AMIGA 2000A, AMIGA 2000B |
| Caroname: | SCA.DAG |
Attributes | |
| Easy identification: | typical text: "Something wonderful has happened Your AMIGA is alive !!! and, even better... Some of your disks are infected by a VIRUS !!! Try ANTIVIRUS from DAG The Mega-Mighty SCA !!" and "SCA!SCA!SCA!SCA!SCA!SCA!SCA!" virus feature: pressing left mouse/fire button of port 1 during system reboot causes screen to become green and the virus to shutdown itself by clearing ColdCapture and CoolCaptureVector |
Type of Infection: | self-identification method: testing 3rd longword for matching string "CHW!" system infection: RAM resident, reset resident, bootblock |
| Infection Technique: | |
| Infection Trigger: | reset (CONTROL+Left-AMIGA+RIGHT-AMIGA) |
| Storage Media affected: | only floppy disks (3.5" and 5.25") |
| Interrupts hooked: | --- |
| Stealth: | |
| Tunneling/Selfprot: | |
| Oligo/Polymorphism: | |
| Encoding Method: | |
| Damage: | permanent damage: overwriting bootblock transient damage: screen buffer manipulation: screen becomes black, message (see above) is displayed by fading in and out peaces of it |
| Damage Trigger: | permanent damage: reset transient damage: 15th infection |
| Particularities: | a resident program using the CoolCaptureVector is shutdown, also using the ColdCaptureVector when the virus is shutdown by its suicide function |
| Similarities: | SCA virus strain |
Agents | |
| Countermeasures: | CHECKVECTORS 2.2, GUARDIAN 1.2, VIRUS-DETEKTOR 1.1, SCA-PROTECTOR 1.0; own suicide function |
| Standard means: | CHECKVECTORS 2.3 |
Acknowledgements | |
| Location: | Virus Test Center, University Hamburg, Germany |
| Classification by: | Oliver Meng |
| Documentation by: | Alfred Manthey Rojas |
| Date: | 10-February-1991 |
| Information Source: | --- |
(c) 1996 Virus-Test-Center, University of Hamburg