DNSChanger 2.0
December 21, 2008 – 11:57 AMDNS Changer 2.0 (Trojan.Flush.M) is the next –in the wild- variant of this famous malware. Now the strategy has been changed, no need to modify the DNS settings on ADSL routers. Instead it will install a network driver (NDISProt.sys) which allows the malware to send/receive raw Ethernet packets. Such approach will help it bypass Windows TCP/IP, FW and HIPS.
It installs a rogue DHCP server on the infected machine and listens for DHCP requests and responds with its own crafted DHCP offer packets. The reply contains malicious DNS servers, which will redirect hosts to infected websites that include everything from phishing to exploit-and-infect pages.
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