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Researchers Increase Purple Flag on P2PInfect Malware with 600x Exercise Surge

Sep 21, 2023THNBotnet / Cyber Menace

P2PInfect Malware

The peer-to-peer (P2) worm often known as P2PInfect has witnessed a surge in exercise since late August 2023, witnessing a 600x bounce between September 12 and 19, 2023.

“This improve in P2PInfect visitors has coincided with a rising variety of variants seen within the wild, suggesting that the malware’s builders are working at an especially excessive growth cadence,” Cado Safety researcher Matt Muir stated in a report printed Wednesday.

A majority of the compromises have been reported in China, the U.S., Germany, the U.Ok., Singapore, Hong Kong, and Japan.

P2PInfect first got here to gentle in July 2023 for its capability to breach poorly secured Redis situations. The menace actors behind the marketing campaign have since resorted to totally different approaches for preliminary entry, together with the abuse of the database’s replication characteristic to ship the malware.


Cado Safety stated it has noticed a rise in preliminary entry occasions attributable to P2PInfect by which the Redis SLAVEOF command is issued by an actor-controlled node to a goal to allow replication.

That is adopted by delivering a malicious Redis module to the goal, which, in flip, runs a command to retrieve and launch the primary payload, after which one other shell command is run to take away the Redis module from the disk in addition to disable the replication.

P2PInfect Malware

One of many new options of the newer variants is the addition of a persistence mechanism that leverages a cron job to launch the malware each half-hour.Moreover, there now exists a secondary methodology that retrieves a duplicate of the malware binary from a peer and executes ought to or not it’s deleted or the primary course of is terminated.

P2PInfect additional overwrites present SSH authorized_keys recordsdata with an attacker-controlled SSH key, successfully stopping present customers from logging in over SSH.

“The primary payload additionally iterates by way of all customers on the system and makes an attempt to alter their person passwords to a string prefixed by Pa_ and adopted by 7 alphanumeric characters (e.g. Pa_13HKlak),” Muir stated. This step, nonetheless, requires that the malware has root entry.


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Regardless of the rising sophistication of the malware, P2PInfect’s actual targets are unclear. Cado Safety stated it noticed the malware making an attempt to fetch a crypto miner payload, however there isn’t a proof of cryptomining thus far.

“It is clear that P2PInfect’s builders are dedicated to sustaining and iterating on the performance of their malicious payloads, whereas concurrently scaling the botnet throughout continents and cloud suppliers at a fast charge,” Muir stated.

“It’s anticipated that these behind the botnet are both ready to implement further performance within the miner payload, or are meaning to promote entry to the botnet to different people or teams.”

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