The FBI has issued a warning to businesses about the relentless wave of ransomware. The bulletin includes preventative tips, and an affirmation of the bureau’s stance that companies affected by cryptoransomware attacks in particular should not succumb to temptation and pay their attackers off. The warning comes at the same time as a Michigan utility continues...

In the ransomware world, it doesn’t take long for today’s darling to become yesterday’s news. Case in point: Locky. Not long ago, Locky was at the core of debilitating infections at major hospitals in California and the Washington, D.C., area, affecting not only access to patient data but also patient care. That was in mid-February...

When exploits kits, in particular Angler, spread ransomware infections, people get nervous. The latest strain to appear in the virulent Angler kit is CryptXXX, which researchers at Proofpoint and Fox IT tied to the same group dropping old-school Reveton ransomware and Bedep click-fraud malware. CryptXXX asks for a steep $500 in Bitcoin to unlock files...

A menacing wave of ransomware that locks up Android devices and demands victims pay $200 in Apple iTunes gift card codes is raising concern among security researchers. The ransomware attacks, they say, open a new chapter for Android vulnerabilities similar to Microsoft’s obsolete, unpatched and unsupported Windows XP operating system. “This is a new and...

TeslaCrypt, like many of its ransomware cousins, doesn’t sleep on past success. Researchers at Endgame Inc., have found two updates for the cryptoransomware in the past two weeks that invest heavily in obfuscation and evasion techniques, and also target a host of new file extensions. These samples, researcher Amanda Rousseau told Threatpost, were found in...

With each new unrelenting ransomware sample, security researchers understand that no matter how quickly antivirus signatures are updated or how rapidly decryptors are built and shared, current defenses will continue to fall short. The problem is that most adequate defenses are sample-specific; Kaspersky Lab has built ransomware decryptors for CoinVault and Bitcryptor, and Cisco has...

Cisco Talos said on Friday that 3.2 million servers are vulnerable to the JBoss flaw used as the initial point of compromise in the recent SamSam ransomware attacks. Worse, researchers said that thousands of servers have already been backdoored. Hardest hit have been K-12 schools running library management software published by Follett called Destiny, Cisco...

Mike Mimoso and Chris Brook recap the news of the week, including the Badlock bust, encryption legislation (Burr-Feinstein, the California decryption bill) and the dawn of ‘cryptoworms’ – Mike also discusses last week’s Infiltrate Conference in Miami. Download: Threatpost_News_Wrap_April_15_2016.mp3 Music by Chris Gonsalves

Menacing ransomware called Jigsaw threatened to delete thousands of files an hour if victims didn’t pay 0.4 Bitcoins or $150. Worse, restarting your PC, according to the attackers, would also cost victims 1,000 deleted files. The icing on the cake was a menacing image of “Billy the Puppet” from the horror movie franchise Saw and...

Ransomware is evolving and soon will share the same deadly efficiencies as notorious worms of the past, such as Conficker and SQL Slammer. In fact, according to security researchers at Cisco Talos, today’s newest ransomware, SamSam, is a harbinger of a new wave of more malicious, tenacious and costly ransomware to come. “Ransomware authors are...