Oxbian/SIDPS
1
0
Fork 0
mirror of https://github.com/Oxbian/SIDPS.git synced 2025-07-08 04:43:47 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

feat: syn/tcpconnect flood / dos détection

Browse Source
This commit is contained in:
Oxbian
2024-11-20 21:38:37 -05:00
parent a1dcee53a1
commit d64f7283de
12 changed files with 147 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
idps/rules/TCP/Scan/finscan.py
View File

@ -16,7 +16,11 @@ def rule(packet, tcp_packets, db):
rule.time_window = db.get_key("finscan_time", 180)
rule.seuil = db.get_key("finscan_count", 5)
if tcp_packets.count_packet_of_type(["F", "RA"], rule.time_window, True) + tcp_packets.count_packet_of_type(["F"], rule.time_window, True) >= rule.seuil:
# Comptage du nombre de scan fin acceptés et refusés
findeny_count = tcp_packets.count_packet_of_type(["F", "RA"], rule.time_window, True)
finaccept_count = tcp_packets.count_packet_of_type(["F"], rule.time_window, True)
if (findeny_count + finaccept_count >= rule.seuil):
db.send_alert(datetime.now(), 5, None, "Fin scan", packet['IP'].src, packet['IP'].dst, proto="TCP", reason="Détection de nombreux patterns de Fin->Reset Ack et Fin->rien", act="Alerte")
print(f"Alerte, seuil dépassés, risque de Fin Scan")
rule.cooldown = time.time()