An air-gapped network is one that is physically isolated from any other network in order to increase its security. These measures go along with the standard cybersecurity best practices of ensuring that endpoint security solutions are able to detect and block the widest range of exploit classes.ĮSET researchers present their analysis of all malicious frameworks used to attack air-gapped networks known to date. Performing a regular analysis of the air-gapped system to check for malicious frameworks is an important part of security in order to keep data safe. Several techniques used to compromise air-gapped systems end up with the straight execution of an executable file stored somewhere on the disk, which could be prevented by configuring the relevant Removable Storage Access policies. ![]() Restrict file execution on removable drives.A USB drive sanitization process performed before any USB drive gets inserted into an air-gapped system could disrupt many of the techniques implemented by the studied frameworks. ![]() While removing USB ports from all systems may not be acceptable for all organizations, it may still be possible to limit functional USB ports only to the systems that absolutely require it. Physically removing or disabling USB ports on all the systems running in an air-gapped network is the ultimate protection.
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