Threat Level: green Handler on Duty: Xavier Mertens

SANS ISC: 404dnserror Adware - SANS Internet Storm Center SANS ISC InfoSec Forums

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404dnserror Adware
Our read Tom sent us a note about a site called "404dnserror/dot/com" (DO NOT VISIT).

A user of his was infected with some spyware/adware. It kept redirecting them to the '404dnserror' page. The page looks like a generic server error, but also advertises an anti-spyware tool in the form of an ActiveX like installer toolbar at the top of the page. To save you the risk of exposing yourself to the site, I included a screen shot below (click on the image to see the full page).

Its probably save to block/montor access to this domain.

I will be teaching next: Intrusion Detection In-Depth - SIEM Summit & Training 2019


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ISC Handler

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