This was a big week for ransomware news primarily because the Necurs Botnet returned with a new campaign for the Locky ransomware. This week we also have 5 new ransomware infections, a change in the CryptXXX extension, and to end on a good note, a couple of decryptors.
In the beginning of the June, the Necurs botnet went offline, which also caused its Dridex and Locky malware campaigns to disappear as well. On monday, ProofPoint detected a multi-million email Locky spam campaign, which appears to be originating from the Necurs botnet, which is back online.
Yesterday, Microsoft released Windows 10 Insider Preview Build 14371 for the PC to insiders on the fast ring. As Microsoft is focusing on fixing bugs for the upcoming Windows 10 Anniversary Update release, there is only one new feature related to Windows activation added to this build.
A new ransomware was discovered that is written in Python and targets the Zimbra enterprise collaboration software. Reported by one of our visitors, this ransomware targets the Zimbra email message store folder and encrypts all of the files located within it. It then creates a ransom note in /root/how.txt that demands 3 bitcoins.
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