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December 2, 2015

New Drive-By Allows Exploit to Plug Dreaded Ransomware Cryptowall 4.0

A new series of drive-by campaigns that are equipped to spread the Angler exploit kit to subsequently shove the most infamous ransomware of them all, Cryptowall, has been discovered.

A team of security researchers at Heimdal Security have uncovered a new batch of malicious drive-by campaigns. The new strain spreads the Angler exploit kit by injecting malicious code into targeted web pages.  The researchers note the destructive potential of the campaigns due to the malware authors’ comprehensive objectives and the attack mechanisms used.

The complete account of the malware discovery can be found here.

If the campaign is effective, the [...]

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November 6, 2015

CryptoWall 4.0: Why the Ransomware Presents a Bigger Threat than Its Predecessor

CryptoWall 4.0 is a harder ransomware to protect against than its predecessor, CrptoWall 3.0, according to Heimdal Security. This is pretty serious news, considering CryptoWall 3.0 has raked in an estimated $325 million from hundreds of thousands of victims by demanding ransom payments in bitcoin since the ransomware debuted less than a year ago.

Andrfa Zaharia, a security and marketing/communication specialist at Heimdal Security, offers an overview on why the new strain is a more dangerous threat and offers some pointers on how to avoid becoming a victim. Following is a summary of this overview from the Heimdal blog.

Code Has Been Enhanced

The CryptoWall code has been [...]

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