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Tag: Ransomware

Ransomware is a Cryptovirology attack carried out using covertly installed malware that encrypts the victim’s files and then requests a ransom payment in return for the decryption key that is needed to recover the encrypted files. Thus, ransomware is an access-denial type of attack that prevents legitimate users from accessing files since it is intractable to decrypt the files without the decryption key. Other attacks superficially lock the system and display messages intended to coax the user into paying. Ransomware typically propagates as a Trojan, whose payload is disguised as a seemingly legitimate file.

While initially popular in Russia, the use of ransomware scams has grown internationally; in June 2013, security software vendor McAfee released data showing that it had collected over 250,000 unique samples of ransomware in the first quarter of 2013, more than double the number it had obtained in the first quarter of 2012. Wide-ranging attacks involving encryption-based ransomware began to increase through Trojans such as CryptoLocker, which had procured an estimated US$3 million before it was taken down by authorities, and CryptoWall, which was estimated by the US Federal Bureau of Investigation (FBI) to have accrued over $18m by June 2015.

Bitcoin rise fuels social media scams

The price of a single bitcoin passed that of an ounce of gold for the first time this month, and scammers were quick to...

The cost of launching a DDoS attack

A distributed denial-of-service (DDoS) attack is one of the most popular tools in the cybercriminal arsenal.The motives behind such attacks can vary – from...

Blank Slate Spam Campaign Spreads Cerber Ransomware

A spam campaign called Blank Slate is spreading Cerber ransomware and abusing hosting providers to register new domains as soon as they're taken down....

World’s worst botnet fiends switch from ransomware to stock scam spam

IT LIVES! Cybercriminals behind the Necurs botnet have reactivated the zombie network and returned to their original business of using compromised machines as conduits...

Locky, Cerber Ransomware Skilled at Hiding

Since January, a number of ransomware families are sharing a common infrastructure with different techniques allowing the malware to hide from detection systems.

Top 8 Reasons You Don’t Want to Miss SAS 2017

The planning for Kaspersky Lab Security Analyst Summit (SAS 2017) is nearing completion and we have a small number of invitations available for malware...

Star Trek-Themed Ransomware Demands New Crypto-Currency

Kirk ransomware comes in guise of stress-testing tool and demands 50 Monero ($1,100) to unlock.

Shameless crooks fling Star Trek-themed ransomware at world

Live long and (don't) prosper Audacious cybercriminals have created an Star Trek-themed strain of ransomware.…

How to remove ransomware: Use this battle plan to fight back

Ransomware doesn’t sneak into your PC like ordinary malware.It bursts in, points a gun at your data, and screams for cash—or else.And if you don’t...

Petya ransomware returns, wrapped in extra VX nastiness

'PetrWrap' tries to blame its predecessor for attacks Researchers have spotted a variant of last year's Petya ransomware, now with updated crypto and ransomware...

New ‘PetrWrap’ Signals Intensified Rivalry Among Ransomware Gangs

PetrWrap modifies Petya ransomware so its authors can't control unauthorized use of their malware.

Ransomware: Now cybercriminals are stealing code from each other, say researchers

Those behind PetrWrap are apparently using code from another form of ransomware without paying for it.