Cyber Risks · Unit 42 Palo Alto Networks

Baby Shark Malware Part Two – Attacks Continue Using Kim JongRAT and PCRat

Summary: Unit 42 reports that BabyShark spear-phishing attacks continued through March and April 2019, expanding from U.S. national think tanks to the cryptocurrency industry. Researchers recovered the malware's server- and client-side files plus two encoded secondary payloads, which decoded to KimJongRAT and PCRat, and found a PHP sample exploiting CVE-2018-8174 on the C2 server though no in-the-wild case was observed.

What you should know: The C2 server keeps a base64-encoded denylist of IP addresses and computer names that made suspicious access attempts and silently withholds the next infection stage from them, so a researcher or defender probing the infrastructure learns nothing while the operator is alerted through a separate log file.

Read the original at Unit 42 Palo Alto Networks ↗

Topics
Phishing & Social Engineering
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