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Cyber Risks · Unit 42 Palo Alto Networks

The Latest Kuluoz Spam Campaign Kicks Off

Summary: At 06:47 PST on May 20, Palo Alto Networks WildFire detected the start of a new Kuluoz spam campaign, with email volume rising to over 30,000 per hour around noon PST and not slowing by 1:30PM PST. Kuluoz, a descendant of Asprox, spreads by sending copies of itself as email attachments, and this campaign's messages pose as a court notice about a case hearing with a malware attachment packed to evade antivirus.

What you should know: Only three of 53 VirusTotal scanners detected the latest variant, and the malware's self-propagating email loop means each newly infected system sends more messages - so detection lag and infection volume compound each other.

Read the original at Unit 42 Palo Alto Networks ↗

Topics
Malware
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