Malware


New Version of Kelihos Botnet Appears

Researchers are tracking a new version of the Kelihos botnet, one that comes complete with better resistance to sinkholing techniques and a feature that enables it to remain dormant on infected machines for long periods to help avoid detection. The botnet also is using an advanced fast-flux capability to hide the domains it uses for command-and-control and malware distribution.

Bots, Zeus, Web Exploits: the Most Potent Threats of 2012

Every year it seems that security-related news advances further from its roots in national security circles, IT departments, and the antivirus industry into the mainstream consciousness. From July to the end of year was no exception. However, despite a handful of flashy security stories, F-Secure claims that the second half of 2012 was really about things that rarely (if ever) come up in local and national news: botnets, ZeroAccess in particular, Java and other Web exploits, and the ubiquitous Zeus banking Trojan.


Banking malware has primarily been just that, an attack tool used against financial institutions to steal money from online bank accounts. But what if cybercrime gangs decided to flip that on its head, and use malware such as the Citadel banking Trojan to steal credentials from not only banks, but government agencies and commercial businesses?

While Android malware continues to grow faster than other malware types, it still accounts for only a minute fraction of all malware on the Web, according to Cisco’s annual security report released this week.Compromised websites hosting malicious Java and iFrame attacks and other malware far and away outpaces all other delivery vectors for malware, Cisco’s report said.