This worm arrives by connecting affected removable drives to a system. It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It drops an AUTORUN.INF file to automatically execute the copies it drops when a user accesses the drives of an affected system.
It modifies the affected system's HOSTS files. This prevents users from accessing certain websites.
Arrival Details
This worm arrives by connecting affected removable drives to a system.
It may arrive via network shares.
It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This worm drops the following copies of itself into the affected system:
(Note: %Windows% is the Windows folder, which is usually C:\Windows or C:\WINNT.)
It terminates the execution of the copy it initially executed and executes the copy it drops instead.
Autostart Technique
This worm adds the following registry entries to enable its automatic execution at every system startup:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
test = "test.exe"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Terminal Server\
Install\Software\Microsoft\
Windows\CurrentVersion\Run
test = "test.exe"
Other System Modifications
This worm creates the following registry entry(ies) to bypass Windows Firewall:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile\AuthorizedApplications\
List
{malware path}\{malware name}.exe = "{malware path}\{malware name}.exe:*:Enabled:1"
Propagation
This worm creates the following folders in all removable drives:
It drops the following copy(ies) of itself in all removable drives:
- driver\usb\{random characters}
It drops an AUTORUN.INF file to automatically execute the copies it drops when a user accesses the drives of an affected system.
The said .INF file contains the following strings:
[autorun]
open=driver\usb\{random characters}
action=Open
shell\open=Open
shell\open\command=driver\usb\{random characters}
Usb_Driver installed
Backdoor Routine
This worm connects to any of the following IRC server(s):
HOSTS File Modification
This worm modifies the affected system's HOSTS files to prevent a user from accessing the following websites:
- www.symantec.com
- securityresponse.symantec.com
- symantec.com
- www.sophos.com
- sophos.com
- www.mcafee.com
- mcafee.com
- liveupdate.symantecliveupdate.com
- www.viruslist.com
- viruslist.com
- viruslist.com
- f-secure.com
- www.f-secure.com
- kaspersky.com
- kaspersky-labs.com
- www.avp.com
- www.kaspersky.com
- avp.com
- www.networkassociates.com
- networkassociates.com
- www.ca.com
- ca.com
- mast.mcafee.com
- my-etrust.com
- www.my-etrust.com
- download.mcafee.com
- dispatch.mcafee.com
- secure.nai.com
- nai.com
- www.nai.com
- update.symantec.com
- updates.symantec.com
- us.mcafee.com
- liveupdate.symantec.com
- customer.symantec.com
- rads.mcafee.com
- trendmicro.com
- www.trendmicro.com
- www.grisoft.com
- www.grisoft.com
- virustotal.com
- www.virustotal.com
- virscan.org
- www.virscan.org
- scanner.novirusthanks.org
- www.scanner.novirusthanks.org
- virusscan.jotti.org
- www.virusscan.jotti.org
- threatexpert.com
NOTES:
This worm drops copies of itself in the following folders used in peer-to-peer networks:
- %Program Files%\kazaa\my shared folder\
- %Program Files%\kazaa lite\my shared folder\
- %Program Files%\kazaa lite k++\my shared folder\
- %Program Files%\icq\shared folder\
- %Program Files%\grokster\my grokster\
- %Program Files%\bearshare\shared\
- %Program Files%\edonkey2000\incoming\
- %Program Files%\emule\incoming\
- %Program Files%\morpheus\my shared folder\
- %Program Files%\limewire\shared\
- %Program Files%\tesla\files\
- %Program Files%\winmx\shared\
It uses the following file names for the copies it drops in the folders mentioned above:
- Autoloader.exe
- DDOSPING.exe
- Ebooks.exe
- FREEPORN.exe
- fuckshitcunt.scr
- headjobs.scr
- HotmailHacker.exe
- How-to-make-money.exe
- ilovetofuck.scr
- image.scr
- LimeWireCrack.exe
- MSNHacks.exe
- paris-hilton.scr
- Porno.MPEG.exe
- porno.scr
- RapidsharePREMIUM.exe
- ScreenMelter.exe
- VistaUltimate-Crack.exe
- WildHorneyTeens.scr
- Wireshark.exe
- YahooCracker.exe
Step 1
For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.
Step 2
Terminate a malware/grayware process
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*Note: If the detected process is not displayed in theWindows Task Manager, continue doing the next steps.
To terminate the malware/grayware process:
- Open Windows Task Manager. To do this, press CTRL+SHIFT+ESC then click the Processes tab.
- In the list of running programs, locate the process:
- Select the process then press the End Process button.
- To check if the malware/grayware process/es has/have been terminated, close Windows Task Manager then open it again.
- Close Windows Task Manager.
Step 3
Delete this registry value
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Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Terminal Server\Install\Software\Microsoft\Windows\CurrentVersion\Run
- In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List
- {malware path}\{malware name}.exe = "{malware path}\{malware name}.exe:*:Enabled:1"
To delete the registry value this malware created:
- Open Registry Editor. To do this, click Start>Run, type regedit in the text box provided, then press Enter.
- In the left panel of the Registry Editor window, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>Run - In the right panel, locate and delete the entry:
test = "test.exe" - In the left panel of the Registry Editor window, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Terminal Server>Install>Software>Microsoft>Windows>CurrentVersion>Run - In the right panel, locate and delete the entry:
test = "test.exe" - In the left panel of the Registry Editor window, double-click the following:
HKEY_LOCAL_MACHINE>SYSTEM>CurrentControlSet>Services>SharedAccess>Parameters>FirewallPolicy>StandardProfile>AuthorizedApplications>List - In the right panel, locate and delete the entry:
{malware path}\{malware name}.exe = "{malware path}\{malware name}.exe:*:Enabled:1" - Close Registry Editor.
Step 4
Search and delete these folders
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Please make sure you check the
Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result. {drive letter}\driver
To delete malware/grayware folders:
- Right-click Start then click Search... or Find..., depending on the version of Windows you are running.
- In the Named input box, type:
- In the Look In drop-down list, select My Computer, then press Enter.
- Once located, select the folder then press SHIFT+DELETE to permanently delete the folder.
- Repeat the said steps for all folders listed.
Step 5
Remove these strings added by the malware/grayware/spyware in the HOSTS file
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127.0.0.1 www.symantec.com
127.0.0.1 securityresponse.symantec.com
127.0.0.1 symantec.com
127.0.0.1 www.sophos.com
127.0.0.1 sophos.com
127.0.0.1 www.mcafee.com
127.0.0.1 mcafee.com
127.0.0.1 liveupdate.symantecliveupdate.com
127.0.0.1 www.viruslist.com
127.0.0.1 viruslist.com
127.0.0.1 viruslist.com
127.0.0.1 f-secure.com
127.0.0.1 www.f-secure.com
127.0.0.1 kaspersky.com
127.0.0.1 kaspersky-labs.com
127.0.0.1 www.avp.com
127.0.0.1 www.kaspersky.com
127.0.0.1 avp.com
127.0.0.1 www.networkassociates.com
127.0.0.1 networkassociates.com
127.0.0.1 www.ca.com
127.0.0.1 ca.com
127.0.0.1 mast.mcafee.com
127.0.0.1 my-etrust.com
127.0.0.1 www.my-etrust.com
127.0.0.1 download.mcafee.com
127.0.0.1 dispatch.mcafee.com
127.0.0.1 secure.nai.com
127.0.0.1 nai.com
127.0.0.1 www.nai.com
127.0.0.1 update.symantec.com
127.0.0.1 updates.symantec.com
127.0.0.1 us.mcafee.com
127.0.0.1 liveupdate.symantec.com
127.0.0.1 customer.symantec.com
127.0.0.1 rads.mcafee.com
127.0.0.1 trendmicro.com
127.0.0.1 www.trendmicro.com
127.0.0.1 www.grisoft.com
127.0.0.1 www.grisoft.com
127.0.0.1 virustotal.com
127.0.0.1 www.virustotal.com
127.0.0.1 virscan.org
127.0.0.1 www.virscan.org
127.0.0.1 scanner.novirusthanks.org
127.0.0.1 www.scanner.novirusthanks.org
127.0.0.1 virusscan.jotti.org
127.0.0.1 www.virusscan.jotti.org
127.0.0.1 threatexpert.com
"
To edit the HOSTS file:
- Open the following file using a text editor such as Notepad:
%System%\drivers\etc\HOSTS
(Note: %System% is the Windows system folder, which is usually C:\WINNT\System32 on Windows 2000, and C:\Windows\System32 on Windows XP and Windows Server 2003.) - Delete the following entry/ies:
127.0.0.1 www.symantec.com
127.0.0.1 securityresponse.symantec.com
127.0.0.1 symantec.com
127.0.0.1 www.sophos.com
127.0.0.1 sophos.com
127.0.0.1 www.mcafee.com
127.0.0.1 mcafee.com
127.0.0.1 liveupdate.symantecliveupdate.com
127.0.0.1 www.viruslist.com
127.0.0.1 viruslist.com
127.0.0.1 viruslist.com
127.0.0.1 f-secure.com
127.0.0.1 www.f-secure.com
127.0.0.1 kaspersky.com
127.0.0.1 kaspersky-labs.com
127.0.0.1 www.avp.com
127.0.0.1 www.kaspersky.com
127.0.0.1 avp.com
127.0.0.1 www.networkassociates.com
127.0.0.1 networkassociates.com
127.0.0.1 www.ca.com
127.0.0.1 ca.com
127.0.0.1 mast.mcafee.com
127.0.0.1 my-etrust.com
127.0.0.1 www.my-etrust.com
127.0.0.1 download.mcafee.com
127.0.0.1 dispatch.mcafee.com
127.0.0.1 secure.nai.com
127.0.0.1 nai.com
127.0.0.1 www.nai.com
127.0.0.1 update.symantec.com
127.0.0.1 updates.symantec.com
127.0.0.1 us.mcafee.com
127.0.0.1 liveupdate.symantec.com
127.0.0.1 customer.symantec.com
127.0.0.1 rads.mcafee.com
127.0.0.1 trendmicro.com
127.0.0.1 www.trendmicro.com
127.0.0.1 www.grisoft.com
127.0.0.1 www.grisoft.com
127.0.0.1 virustotal.com
127.0.0.1 www.virustotal.com
127.0.0.1 virscan.org
127.0.0.1 www.virscan.org
127.0.0.1 scanner.novirusthanks.org
127.0.0.1 www.scanner.novirusthanks.org
127.0.0.1 virusscan.jotti.org
127.0.0.1 www.virusscan.jotti.org
127.0.0.1 threatexpert.com
- Save the file and close the text editor.
Step 6
Search and delete AUTORUN.INF files created by WORM_SDBOT.SPB that contain these strings
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[autorun]
open=driver\usb\{random characters}
action=Open
shell\open=Open
shell\open\command=driver\usb\{random characters}
Usb_Driver installed
To identify and delete AUTORUN.INF files created:
- Right-click the Start button then choose Search... or Find..., depending on the version of Windows you are running.
- In the Named input box, type:
AUTORUN.INF - In the Look in: drop-down list, select a drive, then press Enter.
- Select the file, then open using Notepad.
- Check if the following lines are present in the file:
[autorun]
open=driver\usb\{random characters}
action=Open
shell\open=Open
shell\open\command=driver\usb\{random characters}
Usb_Driver installed
- If the lines are present, delete the file.
- Repeat steps 3 to 6 for the remaining AUTORUN.INF files in other remaining removable drives.
- Close Search Results.
Step 7
Scan your computer with your Trend Micro product to delete files detected as WORM_SDBOT.SPB. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
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