Trusted and Revoked Certificates
Clamav 0.98 checks signed PE files for certificates and verifies each certificate in the chain against a database of trusted and revoked certificates. The signature format is
Name;Trusted;Subject;Serial;Pubkey;Exponent;CodeSign;TimeSign;CertSign;
NotBefore;Comment[;minFL[;maxFL]]
where the corresponding fields are:
-
Name:name of the entry -
Trusted:bit field, specifying whether the cert is trusted. 1 for trusted. 0 for revoked -
Subject:sha1 of the Subject field in hex -
Serial:the serial number asclamscan --debug --verbosereports -
Pubkey:the public key in hex -
Exponent:the exponent in hex. Currently ignored and hardcoded to 010001 (in hex) -
CodeSign:bit field, specifying whether this cert can sign code. 1 for true, 0 for false -
TimeSign:bit field. 1 for true, 0 for false -
CertSign:bit field, specifying whether this cert can sign other certs. 1 for true, 0 for false -
NotBefore:integer, cert should not be added before this variable. Defaults to 0 if left empty -
Comment:comments for this entry
The signatures for certs are stored inside .crb files.