A fiscally motivated danger actor is actively scouring the internet for unprotected Apache NiFi situations to covertly install a cryptocurrency miner and facilitate lateral motion.
The results come from the SANS Internet Storm Centre (ISC), which detected a spike in HTTP requests for “/nifi” on Might 19, 2023.
“Persistence is achieved by means of timed processors or entries to cron,” mentioned Dr. Johannes Ullrich, dean of investigate for SANS Technology Institute. “The attack script is not saved to the method. The attack scripts are held in memory only.”
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A honeypot set up permitted the ISC to decide that the preliminary foothold is weaponized to fall a shell script that gets rid of the “/var/log/syslog” file, disables the firewall, and terminates competing crypto-mining instruments, right before downloading and launching the Kinsing malware from a distant server.
It is really well worth pointing out that Kinsing has a observe file of leveraging publicly disclosed vulnerabilities in publicly accessible web applications to have out its attacks.
In September 2022, Development Micro in-depth an equivalent attack chain that utilized outdated Oracle WebLogic Server flaws (CVE-2020-14882 and CVE-2020-14883) to produce the cryptocurrency mining malware.
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Pick out attacks mounted by the identical risk actor towards exposed NiFi servers also entail the execution of a second shell script that’s created to accumulate SSH keys from the contaminated host to join to other devices inside of the victim’s firm.
A notable indicator of the ongoing campaign is that the precise attack and scanning activities are carried out by way of the IP address 109.207.200[.]43 versus port 8080 and port 8443/TCP.
“Thanks to its use as a facts processing system, NiFi servers normally have obtain to enterprise-critical facts,” SANS ISC stated. “NiFi servers are possible beautiful targets as they are configured with much larger CPUs to guidance data transformation tasks. The attack is trivial if the NiFi server is not secured.”
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Some parts of this short article are sourced from:
thehackernews.com