Disaster as CryptoWall encrypts US firm’s entire server installation

“Here is a tale of ransomware that will make your blood run cold,” announced Stu Sjouwerman of security training firm KnowBe4 in a company newsletter this week and he wasn’t exaggerating.

One of his firm’s customers contacted him on 14 October for advice on how to buy Bitcoins after all seven of its servers containing 75GB of data had been encrypted by a recent variant of the hated CryptoWall ransom Trojan.

An admin had clicked on a phishing link which was bad enough. Unfortunately, the infected workstation had mapped drives and permissions to all seven servers and so CryptoWall had quickly jumped on to them to hand the anonymous professional a work day to forget.

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