K Warnung ! Ein neuer (selten primitiver) Trojan ist erschienen. Er befindetN sich in dem Archiv exhack.lha und soll angeblich ein AmiExpress MailboxhackerJ sein. In Wirklichkeit wird versucht diverse Systemdateien (Teile der Libs
etc.)I zu l
schen. Der Code ist primitiv und eine Rettung mit DiskSalv ist ohne
jedes Problem m
glich.
Gruss
Markus Schmall
6 Tristar & Red Sector AV task force is back ...
BWarning ! Virus in blc-lc12.lha ! This is another lame BIOMECHANIC(trojan full of bugs and $8000003 errors.
I Warning ! M-hac.lha and Bloody.exe contain LINKVIRUSES ! BE CAREFULL !
# Here a first BETA ANALYSE of it:
ConMan 1995 Linkvirus:
----------------------
2 Other possible names: M-Hac Virus, Bloody Virus( Detected in: M-hac.lha and Bloody.EXE) Detected when: August 1995/Germany SOS
Linking method: 4eb9 (!!!!)
Resident: NO
Length: 1836 bytes
E This is a new type of linkvirus. There are 2 installers known yet.C It simply creates a new process with the known CONMAN code , but
now with different names.
Possible names are:
C:DIR ramlib
Background_Process
RAm
L:FastFileSystem
LIBS: gadtools.library
Workbench
DF0
addbuffers
CON
LIB:req.library
CLI(0): no command loaded( CLI(1): no command loaded
G Please note that several of this takss can appear in normal systems,
too.
E The speciality of this virus is, that it uses a intern 4eb9 linkerB to link to files. Quite tricky. Viruskillers like VT, VZ_II and5 VW should so be able to detect the infected files.
F The linking routine knows the following hunksymbols: $3f2,$3f3,$3ecC and $3eb. The code is a little bit dangerous, but I will implentE in VirusWorkshop a complete reverse analyzed routine, so it should; be no problem to repair even not working infected files.
C The virus adds 4 hunks to the file and the linked code is partlyC packed. It is packed with StoneCracker 4.04
and then afterwards
manipulated.
$ The virus is not memory resident.
# Some words about the installers:
m-hack.lha FILE_ID.DIZ
$ .-------------------------------.$ | MASTER AMIEX ONLINE PW HACKER |$ | PREVIOUS VERSION HAVE A BUG! |$ `-------------------------------'
; The programm hack (4388 bytes long) contains the trojan.
bloody.exe FILE_ID.DIZ:
! NON DOS DISK READER >>>>-BEST!
? The programm is including this ID 25560 bytes unpacked long.