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A Trojan horse is a program that purports to perform some legitimate function, yet upon execution it compromises the user's security. [17] A simple example is the following malicious version of the Linux sudo command. An attacker would place this script in a publicly writable directory (e.g., /tmp).
Alureon (also known as TDSS or TDL-4) is a trojan and rootkit created to steal data by intercepting a system's network traffic and searching for banking usernames and passwords, credit card data, PayPal information, social security numbers, and other sensitive user data. [1]
The first malicious rootkit for the Windows NT operating system appeared in 1999: a trojan called NTRootkit created by Greg Hoglund. [9] It was followed by HackerDefender in 2003. [ 1 ] The first rootkit targeting Mac OS X appeared in 2009, [ 10 ] while the Stuxnet worm was the first to target programmable logic controllers (PLC).
Blackshades is a malicious trojan horse used by hackers to control infected computers remotely. The malware targets computers using operating systems based on Microsoft Windows . [ 2 ] According to US officials, over 500,000 computer systems have been infected worldwide with the software.
These distribution methods include exploit kits, [11] Word and Excel attachments with malicious macros, [12] DOCM attachments, [13] and zipped JS attachments. [ 14 ] The general consensus among security experts to protect yourself from ransomware, including Locky, is to keep your installed programs updated and to only open attachments from ...
Malicious apps can steal your personal information and money, without you even realizing something is wrong. Here's how to hunt them down — and ward them off in the future.