Internet threat level: 1
Home→Descriptions→Email-Worm.Win32.Warezov.ex
Email-Worm.Win32.Warezov.ex
| Detected | Jun 19 2007 08:13 GMT |
| Released | Aug 28 2009 15:28 GMT |
| Published | Jun 19 2007 08:13 GMT |
Payload
Removal instructions
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:
- Delete the following registry key value:
[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows] "AppInit_DLLs" = "<path to worm file> "
- Delete the original worm file (the location will depend on how the program originally penetrated the victim machine).
- Update your antivirus databases and perform a full scan of the computer (download a trial version of Kaspersky Anti-Virus).
Email-Worms spread via email. The worm sends a copy of itself as an attachment to an email message or a link to its file on a network resource (e.g. a URL to an infected file on a compromised website or a hacker-owned website).
In the first case, the worm code activates when the infected attachment is opened (launched). In the second case, the code is activated when the link to the infected file is opened. In both case, the result is the same: the worm code is activated.
Email-Worms use a range of methods to send infected emails. The most common are:
- using a direct connection to a SMTP server using the email directory built into the worm’s code
- using MS Outlook services
- using Windows MAPI functions.
Email-Worms use a number of different sources to find email addresses to which infected emails will be sent:
- the address book in MS Outlook
- a WAB address database
- .txt files stored on the hard drive: the worm can identify which strings in text files are email addresses
- emails in the inbox (some Email-Worms even “reply” to emails found in the inbox)
Many Email-Worms use more than one of the sources listed above. There are also other sources of email addresses, such as address books associated with web-based email services.
Email-Worm.
- Virus:
W32/Stration. dr (McAfee) - Troj/StraDr-Gen (Sophos)
- Worm.
Stration. NP (ClamAV) - Trj/Spamtaload.
AW (Panda) - W32/Warezov.
GG (FPROT) - TrojanDropper:
Win32/Stration. A (MS(OneCare)) - Win32.
HLLM. Limar (DrWeb) - Win32/Stration.
XW worm (Nod32) - Dropped:
Win32. Warezov. DW@mm (BitDef7) - Trojan.
Opnis. Gen!Pac. 45 (VirusBuster) - Win32:
WareWorm-B [Wrm] (AVAST) - Email-Worm.
Win32. Warezov (Ikarus) - I-Worm/Stration (AVG)
- TR/Dldr.
Stration. C (AVIRA) - W32.
Stration. DL@mm (NAV) - W32/Stration.
CUX (Norman) - Worm.
Mail. Warezov. gr (Rising) - Email-Worm.
Win32. Warezov. ex [AVP] (FSecure) - TROJ_STRAT.
FK (TrendMicro) - Trojan.
Malware (Sunbelt) - Trojan.
Opnis. Gen!Pac. 45 (VirusBusterBeta)
© 1997-2012 Kaspersky Lab ZAO. All Rights Reserved.
Industry-leading Antivirus Software.
Registered trademarks and service marks are the property of their respective owners.