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Malware, short for malicious software, is any software used to disrupt computer operations, gather sensitive information, gain access to private computer systems, or display unwanted advertising. Malicious software was called computer virus before the term malware was coined in 1990 by Yisrael Radai. The first category of malware propagation concerns parasitic software fragments that attach themselves to some existing executable content. The fragment may be machine code that infects some existing application, utility, or system program, or even the code used to boot a computer system. Malware is defined by its malicious intent, acting against the requirements of the computer user, and does not include software that causes unintentional harm due to some deficiency.

Malware may be stealthy, intended to steal information or spy on computer users for an extended period without their knowledge, as for example Regin, or it may be designed to cause harm, often as sabotage (e.g., Stuxnet), or to extort payment (CryptoLocker). ‘Malware’ is an umbrella term used to refer to a variety of forms of hostile or intrusive software, including computer viruseswormstrojan horsesransomwarespywareadwarescareware, and other malicious programs. It can take the form of executable code, scripts, active content, and other software. Malware is often disguised as, or embedded in, non-malicious files. As of 2011 the majority of active malware threats were worms or trojans rather than viruses.

How the CIA infects air-gapped networks

Sprawling “Brutal Kangarooldquo; spreads malware using booby-trapped USB drives.

WikiLeaks doc dump reveals CIA tools for infecting air-gapped PCs

Brutal Kangaroo jumps network breaks, according to leaked classified info WikiLeaks has published online more top-secret documents it has obtained from the CIA describing the agency's hacking tools.

This time the dossier details software codenamed Brutal Kangaroo that agents can use to infect targets' air-gapped computers with malware.…

Microsoft Says Fireball Threat ‘Overblown’

Check Point has toned down its initial estimates on the number of Fireball malware infections from 250 million machines and 20 percent of corporate networks to 40 million computers.

Microsoft claims Fireball malware enterprise threat ‘overblown’

Microsoft has cast doubt on Check Point's claims that Fireball has a hold in one in five corporate networks.

Google cracks down on Ztorg Trojans plaguing the Play app store

The malware sends premium rate messages through Android devices to plunder your bank account.

More Android apps from dangerous Ztorg family sneak into Google Play

Almost 100 such apps, with >1 million downloads, found so far (but not by Google).

Ztorg: from rooting to SMS

Irsquo;ve been monitoring Google Play Store for new Ztorg Trojans since September 2016, and have so far found several dozen new malicious apps.

All of them were rooting malware that used exploits to gain root rights on the infected device.
In May 2017, a new Ztorg variant appeared on the Google Play Store – only this this time it wasnrsquo;t a rooting malware but a Trojan-SMS.

IoT Malware Activity Already More Than Doubled 2016 Numbers

The number of new malware samples in the wild this year targeting connected internet-of-things (IoT) devices has already more than doubled last yearrsquo;s total.

This sneaky malware will cause headaches even after it is deleted...

The QakBot/Pinkslipbot banking trojan can still cause headaches even after it's been removed from your system.