| Alias: | Poem |
| Strain: | - |
| detected when: | |
| where: | |
| Classification: | COM-infector |
| Length: | 1825 |
Preconditions | |
| Operating System(s): | MS-DOS |
| Version/Release: | DOSver>=3.10 |
| Computer model(s): | PC's |
| Caroname: | Void_Poem |
Attributes | |
| Easy identification: | |
Type of Infection: | The virus appends itself to the files Selfrec in memory: memw[0:1F0h] XOR memw[0:1F2h] = ACDCh Selfrec on disk: file[last_byte-1] XOR D9h = file[last_byte] |
| Infection Technique: | |
| Infection Trigger: | Exec and (580<=LengthCOM<=62464) |
| Storage Media affected: | |
| Interrupts hooked: | 21h/4Bh, 6Dh |
| Stealth: | |
| Tunneling/Selfprot: | |
| Oligo/Polymorphism: | |
| Encoding Method: | |
| Damage: | Transient: Poem (very adolescent!) displayed on screen. Permanent: Poem (the same one) written over LSN 1..1220 on drive C: |
| Damage Trigger: | Transient: Day=21 and Month<>12 and counter=2112 Permanent: Month=12 and Day=21 |
| Particularities: | PC may hang due to direct residency Displayed text: "..." (Poem text; too long to include; encrypted) Not displayed text: None The poem printed by the virus states it was written by"Marvin Giskard", the pseudonym of the person claimingto have written 10_Past_3.748. The poem is dedicated to"T"; 10_Past_3.789, a rework of .748, includes code toprint the name "Therese". |
| Similarities: | 10_Past_3.748, 10_Past_3.789 |
Agents | |
| Countermeasures: | |
| Standard means: | |
Acknowledgements | |
| Location: | Virus Test Center, University Hamburg, FRG |
| Classification by: | Paul Ducklin |
| Documentation by: | Paul Ducklin |
| Date: | 1993-01-11 |
| Information Source: | Caroentry (autom.converter by S.Freitag) |
(c) 1996 Virus-Test-Center, University of Hamburg