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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 17:39:49 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 17:39:49 +0000 |
| commit | a0aa2307322cd47bbf416810ac0292925e03be87 (patch) | |
| tree | 37076262a026c4b48c8a0e84f44ff9187556ca35 /rules/dns-events.rules | |
| parent | Initial commit. (diff) | |
| download | suricata-a0aa2307322cd47bbf416810ac0292925e03be87.tar.xz suricata-a0aa2307322cd47bbf416810ac0292925e03be87.zip | |
Adding upstream version 1:7.0.3.upstream/1%7.0.3
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'rules/dns-events.rules')
| -rw-r--r-- | rules/dns-events.rules | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/rules/dns-events.rules b/rules/dns-events.rules new file mode 100644 index 0000000..d4c02b5 --- /dev/null +++ b/rules/dns-events.rules @@ -0,0 +1,10 @@ +# Malformed data in request. Malformed means length fields are wrong, etc. +alert dns any any -> any any (msg:"SURICATA DNS malformed request data"; flow:to_server; app-layer-event:dns.malformed_data; classtype:protocol-command-decode; sid:2240002; rev:2;) +alert dns any any -> any any (msg:"SURICATA DNS malformed response data"; flow:to_client; app-layer-event:dns.malformed_data; classtype:protocol-command-decode; sid:2240003; rev:2;) +# Response flag set on to_server packet +alert dns any any -> any any (msg:"SURICATA DNS Not a request"; flow:to_server; app-layer-event:dns.not_a_request; classtype:protocol-command-decode; sid:2240004; rev:2;) +# Response flag not set on to_client packet +alert dns any any -> any any (msg:"SURICATA DNS Not a response"; flow:to_client; app-layer-event:dns.not_a_response; classtype:protocol-command-decode; sid:2240005; rev:2;) +# Z flag (reserved) not 0 +alert dns any any -> any any (msg:"SURICATA DNS Z flag set"; app-layer-event:dns.z_flag_set; classtype:protocol-command-decode; sid:2240006; rev:2;) +alert dns any any -> any any (msg:"SURICATA DNS Invalid opcode"; app-layer-event:dns.invalid_opcode; classtype:protocol-command-decode; sid:2240007; rev:1;) |