DNSChanger Trojan Horse (aka RSPlug Trojan) is running wild lately with multiple variants surfacing rapidly and being distributed through more mainstream sites including gamer and technical download sites as well as pornographic and search engine optimized pages resulting in high rankings in search results.

Learn more about the symptoms of DNSChanger Trojan Horse infected computers or scan your computer for spyware with MacScan or remove DNSChanger Trojan Horse (RSPlug) with DNSChanger Trojan Horse Removal Tool for free.

Apple has finally acknowledged that spyware and viruses are a threat for Mac OS X, as well as the latest operating system in the works, Snow Leopard. Snow Leopard will be adding new technology to help prevent against attacks such as sandboxing and anti-phishing features in Safari. This, however, is not a 100% solution to protect against malware.

Today, Landon Fuller posted a proof-of-concept exploit for an unpatched vulnerability in the Java Runtime Environment currently in use by OS X. While this particular proof-of-concept is meant to be harmless, the vulnerability itself currently affects OS X, including OS X 10.5.7, the latest shipping version of OS X. This vulnerability could be exploited to perform “drive-by-downloads” commonly used as a means to infect computers with spyware, or any arbitrary command with the permissions of the executing user. All a user has to do is visit a web page hosting a malicious java applet to be exploited. Until Apple patches their implementation of Java, we recommend that users disable Java applets in their web browser.