DigSig kernel load module checks the signature of a binary before running it. It inserts digital signatures inside the ELF binary and verifies this signature before loading the binary. It is based on the Linux Security Module hooks (standard in main stream Linux kernel 2.5.66 and higher). Therefore, it improves the security of the system by avoiding a wide range of malicious binaries like viruses, worms, Trojan programs, and backdoors from running on the system.
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