Handler on Duty: Johannes Ullrich
Threat Level: green
Podcast Detail
Free Document Converters Add Malware; check my.cnf ownership; FDE Ransomware
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If it's Free, YOU are the Product
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Weak MySQL Configurations Can Lead To Privilege Escalation
http://legalhackers.com/advisories/MySQL-Exploit-Remote-Root-Code-Execution-Privesc-CVE-2016-6662.html
Full Disk Encryption Ransomware
https://www.linkedin.com/pulse/mamba-new-full-disk-encryption-ransomware-family-member-marinho?trk=prof-post
https://isc.sans.edu/forums/diary/If+its+Free+YOU+are+the+Product/21469/
Weak MySQL Configurations Can Lead To Privilege Escalation
http://legalhackers.com/advisories/MySQL-Exploit-Remote-Root-Code-Execution-Privesc-CVE-2016-6662.html
Full Disk Encryption Ransomware
https://www.linkedin.com/pulse/mamba-new-full-disk-encryption-ransomware-family-member-marinho?trk=prof-post
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Discussion
Hello Johannes, I didn't try this scenario, but I think so. The encryption process occurs while the user is logged on and the filesystem is "open". In my opinion, in this case, Mamba could encrypt the partition (even already encrypted) and overwrites the MBR with it's own and ask for the password during the boot.
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Regarding 'Mamba': if FDE is already in place, can Mamba encrypt over it?