Published Feb 28, 2011 | Updated Aug 22, 2017

Win32/Renocide

Severe |Detected with Windows Defender Antivirus

Aliases: No associated aliases

Summary

Win32/Renocide is a family of worms that spread via local, removable, and network drives and also using file sharing applications. They have IRC-based backdoor functionality, which may allow a remote attacker to execute commands on the affected computer.
To detect and remove this threat and other malicious software that may be installed on your computer, run a full-system scan with an appropriate, up-to-date, security solution. The following Microsoft products detect and remove this threat:
 
 
For more information on antivirus software, see http://www.microsoft.com/windows/antivirus-partners/.
Recovering from recurring infections on a network
The following additional steps may need to be taken to completely remove this threat from an infected network, and to stop infections from recurring from this and other similar types of network-spreading malware:
 
  1. Ensure that an antivirus product is installed on ALL computers connected to the network that can access or host shares.
  2. Ensure that all available network shares are scanned with an up-to-date antivirus product.
  3. Restrict permissions as appropriate for network shares on your network. For more information on simple access control, please see: http://technet.microsoft.com/library/bb456977.aspx.
  4. Remove any unnecessary network shares or mapped drives.
 
Note: Additionally it may be necessary to temporarily change the permission on network shares to read-only until the disinfection process is complete.
Removing a program exception
This threat may add a malware program to the Windows Firewall exception list. To remove the program exception, follow these steps:
 
For Windows 7:
1) Click Start, select Control Panel, then System and Security.
2) Select Windows Firewall.
3) On the left-hand menu, select Allow a program through Windows Firewall. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.
4) Click Change Settings. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.
5) Select "ipsec" from the list of allowed programs and features. Click Remove.
6) Click OK.
 
For Windows Vista:
1) Click Start, select Control Panel, then Security Center.
2) On the left-hand menu, select Windows Firewall.
3) On the left-hand menu, select Allow a program through Windows Firewall. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.
4) Select "ipsec" from the list of allowed programs and features. Click Delete.
5) Click OK.
 
For Windows XP:
1) Use an administrator account to log on.
2) Click Start, select Run, type wscui.cpl, and then click OK.
3) In Windows Security Center, click Windows Firewall.
4) On the Exceptions tab, click "ipsec" and then click Delete.
5) Click OK.
Disable Autorun functionality
This threat attempts to spread via removable drives on computers that support Autorun functionality. This is a particularly common method of spreading for many current malware families. For information on disabling Autorun functionality, please see the following article:
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