A recently discovered piece of crypto-currency miner malware isn’t only abusing a National Security Agency-linked remote code execution exploit to spread, but also abuses infected machines to scan for vulnerable Internet of Things (IoT) devices. Dubbed PyRoMineIoT, the malware is similar to the PyRoMine crypto-currency miner that was detailed in late April. Both mine for Monero, both are Python-based, and both use the EternalRomance exploit for propagation purposes (the vulnerability was patched in April last year). The older threat, Fortinet’s Jasper Manuel reveals, has received an update to add some obfuscation, likely in an attempt to evade detection from anti-virus programs. The latest PyRoMine variant is hosted on the same IP address 212[.]83.190[.]122, was compiled with PyInstaller into a stand-alone executable, and continues to use the EternalRomance implementation found on the Exploit Database website, the same as the initially analyzed variant. After a successful exploitation, an obfuscated VBScript is downloaded. The VBScript has the same functionality as the previously used one, but features more organized code and also adds a version number. The same as before, it sets up a Default account with the password P@ssw0rdf0rme and adds the account to the local groups “Administrators,” “Remote Desktop Users,” and “Users,” after which it enables RDP and adds a firewall rule to allow traffic on port 3389.Read More
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