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Amiga Virus Encyclopedia
Lamer 2.0 Virus
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====== Computer Virus Catalog 1.2: LAMER 2.0 Virus (5-June-1990) ======
Entry...............: LAMER 2.0 Virus
Alias(es)...........: LAMER EXTERMINATOR Virus
Virus Strain........: LAMER EXTERMINATOR Virus
Virus detected when.: April 1989
where.: Elmshorn, FRG
Classification......: system virus (bootblock), resident
Length of Virus.....: 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, 1.3/34.5
Computer model(s)...: AMIGA 500, AMIGA 1000, AMIGA 2000A, AMIGA 2000B
--------------------- Attributes --------------------------------------
Easy Identification.: typical text: bootblock: ---
in memory: 'The LAMER Exterminator !!!'
Type of infection...: self-identification method: 423th word ($ABCD)
on bootblock kicktag pointer = pointer to
virus code
system infection: RAM resident, reset resident,
bootblock
Infection Trigger...: reset (CONTROL + Left-AMIGA + Right-AMIGA)
operation: any disk access
Storage media affected: floppy disks (3.5" and 5.25")
Interrupts hooked...: ---
Damage..............: permanent damage: overwrites bootblock; simulates
standard bootblocks when examined with any
tool; fast formatting disks
transient damage: ---
Damage Trigger......: permanent damage: reset
operation: 2 resets and 3 in-
fections
transient damage: ---
Particularities.....: uses StartIOVector; other resident programs using
the system resident list (KickTagPointer,
KickMemPointer) are shut down;
virus has also been found in a trojan horse
version; virus is linked to the 'LoadWB'
command of CLI, so the infection of system
and the non-standard bootblocks produced by
this virus isn't detected by many virus tools
(see above); trojan horse version isn't a link
virus! Virus text is uncoded here and may be
read with hexdump tools. This version contains
a small code section to make the virus resident
beside the original LAMER bootblock; after im-
plantation of virus the real 'LoadWB' command
is executed. Virus encodes itself every new
infection from byte 73, first 72 byte remain
unchanged except byte 5-8 (bootblock checksum).
Similarities........: LAMER EXTERMINATOR viruses
--------------------- Agents ------------------------------------------
Countermeasures.....: Names of tested products of Category 1-6:
Category 1: .2 Monitoring System Vectors:
'CHECKVECTORS 2.2'
.3 Monitoring System Areas:
'CHECKVECTORS 2.2','GUARDIAN 1.2',
'VIRUSX 4.0'
Category 2: Alteration Detection: ---
Category 3: Eradication: 'CHECKVECTORS 2.2',
'VIRUSX 4.0'
Category 4: Vaccine: ---
Category 5: Hardware Methods: ---
Category 6: Cryptographic Methods: ---
Countermeasures successful: without restrictions: 'CHECKVECTORS 2.2',
'VIRUSX 4.0'
with restrictions: 'GUARDIAN 1.2'
Standard means......: 'CHECKVECTORS 2.2'
--------------------- Acknowledgement ---------------------------------
Location............: Virus Test Center, University Hamburg, FRG
Classification by...: Alfred Manthey Rojas
Documentation by....: Alfred Manthey Rojas
Date................: 5-June-1990
Information Source..: ---
===================== End of LAMER (EXTERMINATOR) 2.0 Virus ===========
Antivirus...........: Kickstart 1.2 & 1.3 : VT-Schutz v3.17
Kickstart all others: VirusZ III v1.04B or higher, and also Xvs.library v33.47 or higher
Ascii of Lamer 2 Bootblock virus:
