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In computing, a Trojan horse (or simply Trojan) is a malware that misleads users of its true intent by disguising itself as a normal program. The term is derived from the ancient Greek story of the deceptive Trojan Horse that led to the fall of the city of Troy. [1] Trojans are generally spread by some form of social engineering.
If the user does enable macros, they save and run a binary file that downloads the actual encryption Trojan, which will encrypt all files that match particular extensions. Filenames are converted to a unique 16 letter and number combination. Initially, only the .locky file extension was used for these encrypted files.
SpyEye is a malware program that attacks users running Google Chrome, Safari, Opera, Firefox and Internet Explorer on Microsoft Windows operating systems. [1] This malware uses keystroke logging and form grabbing to steal user credentials for malicious use.
The trojan alerts the user to the fact that it is a trojan and warns them that if they proceed, the computer may no longer be usable. It contains complex payloads that corrupt the system, displaying artifacts on the screen as it runs. Once run, the application cannot be closed without causing further damage to the computer, which will stop ...
You can complete a basic PC health check in about 30 minutes, but a more thorough analysis could take up to an hour or longer, depending on your computer's specifications and what you find.
The Vundo Trojan (commonly known as Vundo, Virtumonde or Virtumondo, and sometimes referred to as MS Juan) is either a Trojan horse or a computer worm that is known to cause popups and advertising for rogue antispyware programs, and sporadically other misbehavior including performance degradation and denial of service with some websites including Google and Facebook.
Regin is stealthy and does not store multiple files on the infected system; instead it uses its own encrypted virtual file system (EVFS) entirely contained within what looks like a single file with an innocuous name to the host, within which files are identified only by a numeric code, not a name.
Some forms of spyware also qualify as scareware because they change the user's desktop background, install icons in the computer's notification area (under Microsoft Windows), and claiming that some kind of spyware has infected the user's computer and that the scareware application will help to remove the infection.
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