| Alias: | |
| Strain: | - |
| detected when: | |
| where: | |
| Classification: | COM-infector, resident |
| Length: | 686 |
Preconditions | |
| Operating System(s): | MS-DOS |
| Version/Release: | Spread - NoneDamage - DOS <= 3.30 (Use old style int 26h)Dam |
| Computer model(s): | PC's |
| Caroname: | Monika |
Attributes | |
| Easy identification: | |
Type of Infection: | The virus appends itself to the files Selfrec in memory: INT_21; AX=DC28h -> AX=1973h Selfrec on disk: FILE[729h..72Ah] = ADh 19h |
| Infection Technique: | |
| Infection Trigger: | (Exec) and (LengthCOM>1834) and (LengthCOM<64843) |
| Storage Media affected: | |
| Interrupts hooked: | 21/25 21/35 21/4B00 |
| Stealth: | |
| Tunneling/Selfprot: | |
| Oligo/Polymorphism: | |
| Encoding Method: | |
| Damage: | Transient: Text 3,'Monika',3 displayed on screen Permanent: Same text written over default disk |
| Damage Trigger: | Transient: (Day=8) and (Month=10) Permanent: (Day=8) and (Month=10) |
| Particularities: | The virus resides above the last MCB None Displayed text: HEART,'Monika',HEART ; Encrypted Not displayed text: None |
| Similarities: | |
Agents | |
| Countermeasures: | |
| Standard means: | |
Acknowledgements | |
| Location: | Virus Test Center, University Hamburg, FRG |
| Classification by: | Petr_FPL Odehnal |
| Documentation by: | Petr_FPL Odehnal |
| Date: | 1993-24-11 |
| Information Source: | Caroentry (autom.converter by S.Freitag) |
(c) 1996 Virus-Test-Center, University of Hamburg