This mysterious hacker is leaving hidden messages for the investigators on their tail
Someone doesn’t like being followed
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A mysterious threat actor has left a trail of hidden messages for the researchers investigating their attacks.
Cybersecurity firm Checkmarx recently published a blog post on a threat actor dubbed RED-LILI, which has been distributing malicious NPM packages using automatically created user accounts.
The company also created theRED-LILI Trackerto share information about the attacker’s packages with the community.
However, the latest findings suggest RED-LILI has not taken kindly to the attention from researchers at Checkmarx.
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Secret messages
RED-LILI responded to the blog by changing up its tactics. Besides trying to make the malicious packages seem more credible, and obfuscating the malicious code, the threat actor also started leaving messages to the researchers.
These messages were being delivered through package names, which “diverged from the normal pattern”, including:
Since the initial report, RED-LILI slowed down and paused the burst automation attacks, the researchers found. RED-LILI also dumped old domain names and registered a new domain: 22timer[.]ga.
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The researchers believe the next wave of the attack is yet to come, as RED-LILI now explores and publishes cherry-picked packages, each with its own unique evasion mechanism.
“However, the attacker’s thumbprint still remains as they re-use similar characteristics (code similarity, same identifying strings, etc.),” the researchers concluded.
“In recent packages, they are doing it while exfiltrating the data they collect to previously unknown addresses on different services, from what we have seen before such as free webhook services, for example, pipedream and requestbin.”
A detailed breakdown of the group’s methods, as well as all the package names that have so far been uncovered, can be foundhere.
Sead is a seasoned freelance journalist based in Sarajevo, Bosnia and Herzegovina. He writes about IT (cloud, IoT, 5G, VPN) and cybersecurity (ransomware, data breaches, laws and regulations). In his career, spanning more than a decade, he’s written for numerous media outlets, including Al Jazeera Balkans. He’s also held several modules on content writing for Represent Communications.
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