Threat Explorer

The Threat Explorer is a comprehensive resource consumers can turn to for daily, accurate, up-to-date information on the latest threats, risks and vulnerabilities.

SONAR.RogueAV!gen21

SONAR.RogueAV!gen21

Updated:
February 23, 2016
Risk Impact:
Low
Systems Affected:
Windows

Behavior

SONAR.RogueAV!gen21 is a heuristic detection that is designed to detect variants of known rogue antivirus programs.

Antivirus Protection Dates

  • Initial Rapid Release version October 02, 2014 revision 022
  • Latest Rapid Release version October 02, 2014 revision 022
  • Initial Daily Certified version August 23, 2011 revision 113
  • Latest Daily Certified version August 24, 2011 revision 050
  • Initial Weekly Certified release date August 24, 2011
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Symantec’s antivirus products contain an highly sensitive detection technology designed to detect entirely new riskswithout traditional signatures. This technology is aimed at detecting malicious software that has been intentionally mutated or morphed by attackers.

If one or more files on your computer have been classified as having a SONAR.RogueAV!gen21 risk, this indicates that the files have suspicious characteristics and therefore might contain a new or unknown risk. However, given the sensitive nature of this detection technology, it may occasionally identify non-malicious, legitimate software programs that also share these behavioral characteristics. Therefore, it is recommended that users manually check all files detected as SONAR.RogueAV!gen21 by Symantec antivirus products for potential misidentification, and submit any suspect files to Symantec Security Response for further analysis. For instructions on how to do this, read Submit Virus Samples .

In rare cases where a legitimate file has been misidentified and subsequently quarantined, your computer may behave abnormally or you may find that one or more applications no longer function as expected. In such rare situations, you should open the Quarantine in your Symantec antivirus product. From here, you may review the list of all files detected as SONAR.RogueAV!gen21 and, if you identify a potential misidentification, restore the file from quarantine and allow it to run normally.



REMOVING A FILE FROM QUARANTINE
It is possible to restore a file from quarantine to its previous location on your computer. This should only be done if you are certain that the file is not malicious. Symantec strongly recommend that you submit the file that was detected as SONAR.RogueAV!gen21 even if you choose to restore the file from quarantine.



You may have arrived at this page either because you have been alerted by your Symantec product about this risk, or you are concerned that your computer has been affected by this risk.

Before proceeding further we recommend that you run a full system scan . If that does not resolve the problem you can try one of the options available below.



FOR NORTON USERS
If you are a Norton product user, we recommend you try the following resources to remove this risk.

Removal Tool

If you have an infected Windows system file, you may need to replace them using from the Windows installation CD .


How to reduce the risk of infection
The following resources provide further information and best practices to help reduce the risk of infection.


FOR BUSINESS USERS
If you are a Symantec business product user, we recommend you try the following resources to remove this risk.

Identifying and submitting suspect files
Submitting suspicious files to Symantec allows us to ensure that our protection capabilities keep up with the ever-changing threat landscape. Submitted files are analyzed by Symantec Security Response and, where necessary, updated definitions are immediately distributed through LiveUpdate™ to all Symantec end points. This ensures that other computers nearby are protected from attack. The following resources may help in identifying suspicious files for submission to Symantec.


Removal Tool

If you have an infected Windows system file, you may need to replace them using from the Windows installation CD .


How to reduce the risk of infection
The following resource provides further information and best practices to help reduce the risk of infection.
Protecting your business network



MANUAL REMOVAL
The following instructions pertain to all current Symantec antivirus products.

1. Performing a full system scan
How to run a full system scan using your Symantec product


2. Restoring settings in the registry
Many risks make modifications to the registry, which could impact the functionality or performance of the compromised computer. While many of these modifications can be restored through various Windows components, it may be necessary to edit the registry. See in the Technical Details of this writeup for information about which registry keys were created or modified. Delete registry subkeys and entries created by the risk and return all modified registry entries to their previous values.