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Cryptowall makes a comeback via malicious help files


Help Net Security - (International) Security researchers at Bitdefender Labs discovered a new spam email campaign targeting users worldwide, in which attackers have sent hundreds of emails with Compiled HTML (.chm) files that install the Cryptowall ransomware when opened. Researchers believe the attack is targeting employees from different organizations to compromise company networks.


Note: This news synopsis is taken from the DHS Daily Open Source Infrastructure Report, a daily [Monday through Friday, except US Federal holidays] summary of open-source published information concerning significant critical infrastructure issues; a 10-day archive of the DOSIR can be found at:

Last Updated: 27 May 2016 10:23:37