Threat Explorer

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13 February 2007
Risk Impact:
Systems Affected:
Microsoft IIS


SecurityRisk.IISPriv can allow an attacker to get administrator privileges from a remote computer through Microsoft Internet Information Server (IIS).


The file must be uploaded and installed in IIS by an attacker.

Antivirus Protection Dates

  • Initial Rapid Release version 02 October 2014 revision 022
  • Latest Rapid Release version 01 February 2015 revision 020
  • Initial Daily Certified version 13 May 2004
  • Latest Daily Certified version 17 January 2008 revision 033
  • Initial Weekly Certified release date 19 May 2004
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

SecurityRisk.IISPriv is a .dll file that can be used to escalate an IUSR account's privileges to Administrator on Microsoft IIS.

The attacker must manually upload and install the .dll file on a computer running IIS, and then rename it to idq.dll. This will allow the file to work as wrapper for the legitimate idq.dll file, which is a part of IIS.

The file size is 32,768 bytes.

The following instructions pertain to all Symantec antivirus products that support Security Risk detection.
  1. Update the definitions.
  2. Run a full system scan and delete all the files detected as SecurityRisk.IISPriv.
For specific details on each of these steps, read the following instructions.

1. To update the definitions
To obtain the most recent definitions, start your Symantec program and run LiveUpdate.

2. To scan for and delete the files
  1. Start your Symantec antivirus program, and then run a full system scan.
  2. If any files are detected as SecurityRisk.IISPriv, click Delete.

    Note: If your Symantec antivirus product reports that it cannot delete a detected file, write down the path and file name. Then use Windows Explorer to locate and delete the file.