Figure 1. Sample “fake” codec site - Gamecodec.com
This article is cumulative snapshot report based upon current and historical community reporting from; Zlob Watch (peki.blogspot), Sunbelt, and the excellent earlier work of Jahewi's Fake Codec Information (unfortunately last updated Jan 20th 07). The key issues are:
- Currently shown here (see fig. 2 below) 53 active, with the 60 earlier reported mostly dormant domains (see fig. 3 below) provides for a total of at least 113 “fake” codec web sites operational over an 18 month period. It would appear many of the active domains alternate on a regular basis from being non resolvable (apparently offline) to online.
- The prime exploits from these sites are (a) Zlob - shows fake error messages and silently installs fake anti-spyware products. (b) DNSChanger silently adds rogue DNS name servers to your PC or Mac. These name servers will resolve non-existing domains (typo-squatting) to IP addresses associated with the authors to generate revenue and could potentially re-routes traffic from legitimate web sites to other suspicious web sites. Ref peki.blogspot
- These exploits are designed for Mac and Windows users; with the attack vector similar to the “fake” anti-spywares however the technique is varied by constantly emerging new domains but mostly to a singular web landing page interface.
- Most importantly all 113 domains are or were registered with Estdomains, similarly all of the active 53 domains in fig. 2 are hosted by AS27595 by Atrivo; AKA – Intercage, Inhoster, Cernal, etc. Also added should be AS 36445 a newer Autonomous Server apparently used by Cernal. For blocking purposes the following IP ranges should be incorporated:
184.108.40.206/20 AS27595 INTERCAGE
220.127.116.11/20 AS36445 CERNEL