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  Home / Viruses / Virus Encyclopedia / Malware Descriptions / Network Worms / Email Worms

Email-Worm.Win32.Warezov.ex

Other versions: .at, .bw, .do, .et, .gl, .iq, .jv, .jx, .la, .lb, .lg, .mo, .ms, .mx, .nd, .nf, .ns, .nv, .oa, .oi, .on, .op, .ov, .oz, .pb, .qa, .qy, .sk

Detection added Nov 01 2006 02:51 GMT
Update released Nov 01 2006 04:44 GMT
Description added Jun 19 2007
Behavior Email Worm

Technical details

This Warezov variant is a component which is used by other variants of the Warezov family. It is a Windows DLL file. The file is 9,216 bytes in size.

Installation

This malicious program will be installed on the victim machine by another malicious program.

Payload

The worm stops and deletes the following services:

alunotify
nod32krn
drwebupw
piderml
wuauclt1
upgrader
mcupdate
NOD32krn
autodown
avgupsvc
sndsrvc
SNDSrvc
wuauclt
wupdmgr
avginet
aupdate
ndetect
luall
tbmon
wuauserv
kavsvc
lsetup
luinit
lucoms
kavsvc
kav

The program also checks the victim machine for the following file:

%System%\e1.dll

If this file is present, the worm adds a link to its executable file in the following system registry parameter:

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows]
"AppInit_DLLs" = "<path to worm file> "
Removal instructions

If your computer does not have an up-to-date antivirus, or does not have an antivirus solution at all, follow the instructions below to delete the malicious program:

  1. Delete the following registry key value:
    [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows]
    "AppInit_DLLs" = "<path to worm file> "
  2. Delete the original worm file (the location will depend on how the program originally penetrated the victim machine).
  3. Update your antivirus databases and perform a full scan of the computer (download a trial version of Kaspersky Anti-Virus).
 

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