282. Here's Another RMM You Most Likely Don't Detect

Hello everyone!

Unfortunately, RMMs are still a very common tool in adversary's hands. Of course, some are very common and easy detectable, but others... Let's look at an example.

According to Huntress report, an adversary leveraged Nezha agent. It's a a lightweight, open-source server monitoring and task management tool that is freely available.

Despite the fact the agent doesn't seem to have interesting command line arguments or metadata, but we always may look inside to extract any notable strings to write YARA rules, for example.

For such legitimate tools usually it's not very difficult. Of course, this binary contains some interesting strings, for example:

nezhahq

NezhaServiceClient

Another good candidate for hunting, right?

See you tomorrow!

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