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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.

The popularity of bitcoin is creating problems for criminals dealing in ransomware -- and some are already casting their gaze towards a less volatile cryptocurrency.
Hancock Health paid up despite having backups available.
A report has warned that ransomware, Internet of Things hacks, and industrial attacks could be almost as big a problem as natural disasters and extreme weather.
Medics say they couldn't wait for backups to be pulled as ransomware ransacked kit A US hospital paid extortionists roughly $60,000 to end a ransomware outbreak that forced staff to use pencil-and-paper records.…
Survey finds 'lack of competent in-house staff' outranks all other forms of cybersecurity worry, including data breaches to ransomware attacks.
The volume of new malware continues to grow and along with it so too have new forms of ransomware, according to McAfee Labs' latest Threat Report.
The switch to new digital currencies will make life more difficult, according to one police chief.
Charges filed against pair coincide with arrests abroad Two of the five unnamed individuals cuffed this month in Romania on suspicion of spreading ransomware face US computer crime charges – for their alleged role in taking over 123 out of 187 networke...
The group behind the VenusLocker ransomware have switched to cryptocurrency mining Monero.
Non-malware attacks account for the majority of all attacks this year, and ransomware grows to a $5 billion industry, new data shows.
Cybercriminals narrow their focus on specific industries, geographies, or size for a better return on investment, security experts say.
North Korea says the US has no basis for laying the blame for the global ransomware attack at its door.