Tag Archives : trojan

- Computer viruses are parasitic programs which are able to replicate themselves, attach themselves to other executables in the computer, and perform some unwanted and often malicious actions. A virus is not able to spread itself to another computers, some user actions are needed for it to infect a new computer. Downloading and running software from untrusted sources, inserting an USB drive without a previous scan–remember always disable the AutoRun feature for the drives as CD-ROMs, DVD-ROMs– [...]

A friend of mine send me a RAR archive containing an executable and a “crack’, telling me his antivirus gives him an alert when he tried to run the “crack”. He downloaded the file from a link posted on a blog, the file was hosted on a file sharing site and the question was if the antivirus alert is because of the name “crack” so if it’s a “false positive”. For who does not know, a “crack” is a small executable which is able to modify [...]

In the multitude of trojans spreaded in the wild these days, a special category named banking trojans as Zeus, Bzub or Torpig deserves the name of the most dangerous trojans for online banking transactions. The most known and scaring is Zeus and his features  include a Polymorphic Engine which make it able to re-encrypt itself each time he infects a computer, as a consequence the common detection methods based on virus binary signature are not for any help–each time the trojan has another [...]