Virus | Spyware
Beagle.AX
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rimuova Beagle.AX virus
W32.Beagle.AX@mm is a mass-mailing worm that also spreads through file-sharing networks. The worm will open a backdoor on TCP port 2002.When Beagle.AX@mm is executed, it performs the following actions:
Displays the following fake error message. Clicking OK will result in more messages appearing, like:
Error!
Can't find a viewer associated with the file
Creates the following seven mutexes:
MuXxXxTENYKSDesignedAsTheFollowerOfSkynet-D
'D'r'o'p'p'e'd'S'k'y'N'e't'
_-oOaxX|-+S+-+k+-+y+-+N+-+e+-+t+-|XxKOo-_
[SkyNet.cz]SystemsMutex
AdmSkynetJklS003
____--->>>>U<<<<--____
_-oO]xX|-S-k-y-N-e-t-|Xx[Oo-_
Some of these will prevent Netsky variants from being launched.
Deletes the following values:
"My AV"
"Zone Labs Client Ex"
"9XHtProtect"
"Antivirus"
"Special Firewall Service"
"service"
"Tiny AV"
"ICQNet"
"HtProtect"
"NetDy"
"Jammer2nd"
"FirewallSvr"
"MsInfo"
"SysMonXP"
"EasyAV"
"PandaAVEngine"
"Norton Antivirus AV"
"KasperskyAVEng"
"SkynetsRevenge"
"ICQ Net"
from the registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
to prevent other malware from being launched when Windows starts.
Creates the following files:
%System%\sysinit.exe
%System%\sysinit.exeopen
%System%\sysinit.exeopenopen
%System%\sysinit.exeopenopenopen
%System%\sysinit.exeopenopenopenopen
Adds the value:
"Syskey" = "%System%\sysinit.exe"
to the registry key:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
May adds the following registry keys:
HKEY_CURRENT_USER\Software\Microsoft\DownloadManager
HKEY_LOCAL_MACHINE\Software\Microsoft\DownloadManager
Attempts to terminate the following processes associated with antivirus and security applications:
ATUPDATER.EXE
AUPDATE.EXE
AUTODOWN.EXE
AUTOTRACE.EXE
AUTOUPDATE.EXE
AVPUPD.EXE
AVWUPD32.EXE
AVXQUAR.EXE
AVXQUAR.EXE
CFIAUDIT.EXE
DRWEBUPW.EXE
ESCANH95.EXE
ESCANHNT.EXE
FIREWALL.EXE
ICSSUPPNT.EXE
ICSUPP95.EXE
LUALL.EXE
MCUPDATE.EXE
NUPGRADE.EXE
OUTPOST.EXE
sys_xp.exe
sysxp.exe
UPDATE.EXE
winxp.exe
kavsvc.exe
Opens a backdoor on TCP port 2002 allowing the compromised machine to be used as an email relay.
Sends an HTTP GET request via TCP port 80 to the domain, webnomey.net, where it attempts to contact a .php script.
Attempts to download a file from the domain sash.cc and save it as 1.exe. This file is then executed.
Searches the hard disk for folders containing the string "shar" and copies itself to them with one of the following names:
Microsoft Office 2003 Crack, Working!.exe
Microsoft Windows XP, WinXP Crack, working Keygen.exe
Microsoft Office XP working Crack, Keygen.exe
Porno, sex, oral, anal cool, awesome!!.exe
Porno Screensaver.scr
Serials.txt.exe
KAV 5.0
Kaspersky Antivirus 5.0
Porno pics arhive, xxx.exe
Windows Sourcecode update.doc.exe
Ahead Nero 7.exe
Windown Longhorn Beta Leak.exe
Opera 8 New!.exe
XXX hardcore images.exe
WinAmp 6 New!.exe
WinAmp 5 Pro Keygen Crack Update.exe
Adobe Photoshop 9 full.exe
Matrix 3 Revolution English Subtitles.exe
ACDSee 9.exe
Searches for email addresses in files with the following extensions:
.wab
.txt
.msg
.htm
.shtm
.stm
.xml
.dbx
.mbx
.mdx
.eml
.nch
.mmf
.ods
.cfg
.asp
.php
.pl
.wsh
.adb
.tbb
.sht
.xls
.oft
.uin
.cgi
.mht
.dhtm
.jsp
Uses its own SMTP engine to send email messages to any addresses found.
The email may have the following characteristics:
From:
Subject: (One of the following)
Re: Msg reply
Re: Hello
Re: Yahoo!
Re: Thank you!
Re: Thanks :)
RE: Text message
Re: Document
Incoming message
Re: Incoming Message
RE: Incoming Msg
RE: Message Notify
Notification
Changes..
Update
Fax Message
Protected message
RE: Protected message
Forum notify
Site changes
Re: Hi
Encrypted document
Message body: (One of the following)
Read the attach.
Your file is attached.
More info is in attach
See attach.
Please, have a look at the attached file.
Your document is attached.
Please, read the document.
Attach tells everything.
Attached file tells everything.
Check attached file for details.
Check attached file.
Pay attention at the attach.
See the attached file for details.
Message is in attach
Here is the file.
Followed by one of the following texts if the attachment is a zip file:
For security reasons attached file is password protected.
The password is [image file containing password]
For security purposes the attached file is password protected.
Password - -- [image file containing password]<
Note: Use password [image file containing password] to open archive.
Attached file is protected with the password for security reasons.
Password is [image file containing password]
In order to read the attach you have to use the following password:
[image file containing password]
Archive password:[image file containing password]
Password - [image file containing password]
Password: [image file containing password]
Attachment: (One of the following)
Information
Details
text_document
Updates
Readme
Document
Info
Details
MoreInfo
Message
followed by one of the extensions:
.hta
.vbs
.exe
.scr
.com
.cpl
.zip
In addition, an image file containing the password may also be attached.
Avoids sending email to addresses containing any of the following strings:
@hotmail
@msn
@microsoft
rating@
f-secur
news
update
anyone@
bugs@
contract@
feste
gold-certs@
help@
info@
nobody@
noone@
kasp
admin
icrosoft
support
ntivi
unix
bsd
linux
listserv
certific
sopho
@foo
@iana
free-av
@messagelab
winzip
winrar
samples
abuse
panda
cafee
spam
pgp
@avp.
noreply
local
root@
postmaster@
Symantec Security Response encourages all users and administrators to adhere to the following basic security "best practices":
Turn off and remove unneeded services. By default, many operating systems install auxiliary services that are not critical, such as an FTP server, telnet, and a Web server. These services are avenues of attack. If they are removed, blended threats have less avenues of attack and you have fewer services to maintain through patch updates.
If a blended threat exploits one or more network services, disable, or block access to, those services until a patch is applied.
Always keep your patch levels up-to-date, especially on computers that host public services and are accessible through the firewall, such as HTTP, FTP, mail, and DNS services (for example, all Windows-based computers should have the current Service Pack installed.). Additionally, please apply any security updates that are mentioned in this writeup, in trusted Security Bulletins, or on vendor Web sites.
Enforce a password policy. Complex passwords make it difficult to crack password files on compromised computers. This helps to prevent or limit damage when a computer is compromised.
Configure your email server to block or remove email that contains file attachments that are commonly used to spread viruses, such as .vbs, .bat, .exe, .pif and .scr files.
Isolate infected computers quickly to prevent further compromising your organization. Perform a forensic analysis and restore the computers using trusted media.
Train employees not to open attachments unless they are expecting them. Also, do not execute software that is downloaded from the Internet unless it has been scanned for viruses. Simply visiting a compromised Web site can cause infection if certain browser vulnerabilities are not patched.
The following instructions pertain to all current and recent Symantec antivirus products, including the Symantec AntiVirus and Norton AntiVirus product lines.
Disable System Restore (Windows Me/XP).
Update the virus definitions.
Run a full system scan and delete all the files detected as W32.Beagle.AX@mm.
Delete the value that was added to the registry.
For specific details on each of these steps, read the following instructions.
1. To disable System Restore (Windows Me/XP)
If you are running Windows Me or Windows XP, we recommend that you temporarily turn off System Restore. Windows Me/XP uses this feature, which is enabled by default, to restore the files on your computer in case they become damaged. If a virus, worm, or Trojan infects a computer, System Restore may back up the virus, worm, or Trojan on the computer.
Windows prevents outside programs, including antivirus programs, from modifying System Restore. Therefore, antivirus programs or tools cannot remove threats in the System Restore folder. As a result, System Restore has the potential of restoring an infected file on your computer, even after you have cleaned the infected files from all the other locations.
Also, a virus scan may detect a threat in the System Restore folder even though you have removed the threat.
For instructions on how to turn off System Restore, read your Windows documentation, or one of the following articles:
"How to disable or enable Windows Me System Restore"
"How to turn off or turn on Windows XP System Restore"
Note: When you are completely finished with the removal procedure and are satisfied that the threat has been removed, re-enable System Restore by following the instructions in the aforementioned documents.
For additional information, and an alternative to disabling Windows Me System Restore, see the Microsoft Knowledge Base article, "Antivirus Tools Cannot Clean Infected Files in the _Restore Folder," Article ID: Q263455.
2. To update the virus definitions
Symantec Security Response fully tests all the virus definitions for quality assurance before they are posted to our servers. There are two ways to obtain the most recent virus definitions:
Running LiveUpdate, which is the easiest way to obtain virus definitions: These virus definitions are posted to the LiveUpdate servers once each week (usually on Wednesdays), unless there is a major virus outbreak. To determine whether definitions for this threat are available by LiveUpdate, refer to the Virus Definitions (LiveUpdate).
Downloading the definitions using the Intelligent Updater: The Intelligent Updater virus definitions are posted daily. You should download the definitions from the Symantec Security Response Web site and manually install them. To determine whether definitions for this threat are available by the Intelligent Updater, refer to the Virus Definitions (Intelligent Updater).
The Intelligent Updater virus definitions are available: Read "How to update virus definition files using the Intelligent Updater" for detailed instructions.
3. To scan for and delete the infected files
Start your Symantec antivirus program and make sure that it is configured to scan all the files.
For Norton AntiVirus consumer products: Read the document, "How to configure Norton AntiVirus to scan all files."
For Symantec AntiVirus Enterprise products: Read the document, "How to verify that a Symantec Corporate antivirus product is set to scan all files."
Run a full system scan.
If any files are detected as infected with W32.Beagle.AX@mm, click Delete.
Note: If your Symantec antivirus product reports that it cannot delete an infected file, Windows may be using the file. To fix this, run the scan in Safe mode. For instructions, read the document, "How to start the computer in Safe Mode." Once you have restarted in Safe mode, run the scan again.
(After the files are deleted, you can leave the computer in Safe mode and proceed with section 4. When that is done, restart the computer in Normal mode.)
4. To delete the value from the registry
Important: Symantec strongly recommends that you back up the registry before making any changes to it. Incorrect changes to the registry can result in permanent data loss or corrupted files. Modify the specified keys only. Read the document, "How to make a backup of the Windows registry," for instructions.
Click Start > Run.
Type regedit
Then click OK.
Navigate to the key:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
In the right pane, delete the value:
"Syskey" = "%System%\sysinit.exe"
Navigate to the following keys if they exist and delete them:
HKEY_CURRENT_USER\Software\Microsoft\DownloadManager
HKEY_LOCAL_MACHINE\Software\Microsoft\DownloadManager
Exit the Registry Editor.