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RDP: Added check to detect probing attempts

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This commit is contained in:
Luca Deri 2025-11-06 22:45:19 +01:00
parent 256ccc1cac
commit bb10ecc380
6 changed files with 66 additions and 14 deletions
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BIN
tests/cfgs/default/pcap/rdp_over_http.pcapng Normal file
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6
tests/cfgs/default/result/rdp.pcap.out
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@ -1,6 +1,6 @@
DPI Packets (TCP): 4 (4.00 pkts/flow)
DPI Packets (TCP): 5 (5.00 pkts/flow)
Confidence DPI : 1 (flows)
Num dissector calls: 1 (1.00 diss/flow)
Num dissector calls: 160 (160.00 diss/flow)
LRU cache ookla: 0/0/0 (insert/search/found)
LRU cache bittorrent: 0/0/0 (insert/search/found)
LRU cache stun: 0/0/0 (insert/search/found)
@ -33,4 +33,4 @@ Acceptable 20 3658 1
RemoteAccess 20 3658 1
1 TCP 172.16.2.185:52494 <-> 192.168.2.142:3389 [proto: 88/RDP][Stack: RDP][IP: 0/Unknown][ClearText][Confidence: DPI][FPC: 0/Unknown, Confidence: Unknown][DPI packets: 4][cat: RemoteAccess/12][Breed: Acceptable][13 pkts/1677 bytes <-> 7 pkts/1981 bytes][Goodput ratio: 64/84][0.37 sec][bytes ratio: -0.083 (Mixed)][IAT c2s/s2c min/avg/max/stddev: 0/43 25/56 45/86 20/16][Pkt Len c2s/s2c min/avg/max/stddev: 44/56 129/283 616/1223 152/394][Risk: ** Desktop/File Sharing **][Risk Score: 10][Risk Info: Found RDP][TCP Fingerprint: 194_64_65535_dd834c0209f5/Unknown][PLAIN TEXT (192.168.2.142)][Plen Bins: 16,16,16,16,0,8,0,0,0,8,0,0,0,0,0,0,0,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,0,0,0,0,0,0,0,0,0,0,0]
1 TCP 172.16.2.185:52494 <-> 192.168.2.142:3389 [proto: 88/RDP][Stack: RDP][IP: 0/Unknown][ClearText][Confidence: DPI][FPC: 0/Unknown, Confidence: Unknown][DPI packets: 5][cat: RemoteAccess/12][Breed: Acceptable][13 pkts/1677 bytes <-> 7 pkts/1981 bytes][Goodput ratio: 64/84][0.37 sec][bytes ratio: -0.083 (Mixed)][IAT c2s/s2c min/avg/max/stddev: 0/43 25/56 45/86 20/16][Pkt Len c2s/s2c min/avg/max/stddev: 44/56 129/283 616/1223 152/394][Risk: ** Desktop/File Sharing **][Risk Score: 10][Risk Info: Found RDP][TCP Fingerprint: 194_64_65535_dd834c0209f5/Unknown][PLAIN TEXT (192.168.2.142)][Plen Bins: 16,16,16,16,0,8,0,0,0,8,0,0,0,0,0,0,0,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,0,0,0,0,0,0,0,0,0,0,0]

6
tests/cfgs/default/result/rdp3.pcap.out
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@ -1,6 +1,6 @@
DPI Packets (TCP): 4 (4.00 pkts/flow)
DPI Packets (TCP): 5 (5.00 pkts/flow)
Confidence DPI : 1 (flows)
Num dissector calls: 1 (1.00 diss/flow)
Num dissector calls: 160 (160.00 diss/flow)
LRU cache ookla: 0/0/0 (insert/search/found)
LRU cache bittorrent: 0/0/0 (insert/search/found)
LRU cache stun: 0/0/0 (insert/search/found)
@ -33,4 +33,4 @@ Acceptable 30 4151 1
RemoteAccess 30 4151 1
1 TCP 10.150.9.21:1685 <-> 10.157.4.161:3389 [proto: 88/RDP][Stack: RDP][IP: 0/Unknown][ClearText][Confidence: DPI][FPC: 0/Unknown, Confidence: Unknown][DPI packets: 4][cat: RemoteAccess/12][Breed: Acceptable][17 pkts/2567 bytes <-> 13 pkts/1584 bytes][Goodput ratio: 63/54][0.67 sec][bytes ratio: 0.237 (Upload)][IAT c2s/s2c min/avg/max/stddev: 0/1 44/54 234/331 66/93][Pkt Len c2s/s2c min/avg/max/stddev: 60/60 151/122 573/440 162/126][Risk: ** Desktop/File Sharing **][Risk Score: 10][Risk Info: Found RDP][TCP Fingerprint: 2_128_65535_44bd01ba086e/Unknown][PLAIN TEXT (Cookie)][Plen Bins: 59,16,4,0,0,0,0,0,0,0,4,0,12,0,0,0,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
1 TCP 10.150.9.21:1685 <-> 10.157.4.161:3389 [proto: 88/RDP][Stack: RDP][IP: 0/Unknown][ClearText][Confidence: DPI][FPC: 0/Unknown, Confidence: Unknown][DPI packets: 5][cat: RemoteAccess/12][Breed: Acceptable][17 pkts/2567 bytes <-> 13 pkts/1584 bytes][Goodput ratio: 63/54][0.67 sec][bytes ratio: 0.237 (Upload)][IAT c2s/s2c min/avg/max/stddev: 0/1 44/54 234/331 66/93][Pkt Len c2s/s2c min/avg/max/stddev: 60/60 151/122 573/440 162/126][Risk: ** Desktop/File Sharing **][Risk Score: 10][Risk Info: Found RDP][TCP Fingerprint: 2_128_65535_44bd01ba086e/Unknown][PLAIN TEXT (Cookie)][Plen Bins: 59,16,4,0,0,0,0,0,0,0,4,0,12,0,0,0,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]

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tests/cfgs/default/result/rdp_over_http.pcapng.out Normal file
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DPI Packets (TCP): 6 (6.00 pkts/flow)
Confidence DPI : 1 (flows)
Num dissector calls: 160 (160.00 diss/flow)
LRU cache ookla: 0/0/0 (insert/search/found)
LRU cache bittorrent: 0/0/0 (insert/search/found)
LRU cache stun: 0/0/0 (insert/search/found)
LRU cache tls_cert: 0/0/0 (insert/search/found)
LRU cache mining: 0/0/0 (insert/search/found)
LRU cache msteams: 0/0/0 (insert/search/found)
LRU cache fpc_dns: 0/1/0 (insert/search/found)
Automa host: 0/0 (search/found)
Automa domain: 0/0 (search/found)
Automa tls cert: 0/0 (search/found)
Automa risk mask: 0/0 (search/found)
Automa common alpns: 0/0 (search/found)
Patricia risk mask: 0/0 (search/found)
Patricia risk mask IPv6: 0/0 (search/found)
Patricia risk: 0/0 (search/found)
Patricia risk IPv6: 0/0 (search/found)
Patricia protocols: 2/0 (search/found)
Patricia protocols IPv6: 0/0 (search/found)
Hash malicious ja4: 0/0 (search/found)
Hash malicious sha1: 0/0 (search/found)
Hash TCP fingerprints: 1/1 (search/found)
Hash public domain suffix: 0/0 (search/found)
Hash ja4 custom protos: 0/0 (search/found)
Hash fp custom protos: 0/0 (search/found)
Hash url custom protos: 0/0 (search/found)
RDP 11 727 1
Acceptable 11 727 1
RemoteAccess 11 727 1
1 TCP 192.168.10.2:50650 <-> 192.168.2.61:3389 [proto: 88/RDP][Stack: RDP][IP: 0/Unknown][ClearText][Confidence: DPI][FPC: 0/Unknown, Confidence: Unknown][DPI packets: 6][cat: RemoteAccess/12][Breed: Acceptable][6 pkts/343 bytes <-> 5 pkts/384 bytes][Goodput ratio: 6/30][0.03 sec][bytes ratio: -0.056 (Mixed)][IAT c2s/s2c min/avg/max/stddev: 0/0 4/4 9/9 4/4][Pkt Len c2s/s2c min/avg/max/stddev: 52/52 57/77 71/120 8/28][Risk: ** Desktop/File Sharing **** Probing Attempt **][Risk Score: 60][Risk Info: Mismatching client/server protocol / Found RDP][TCP Fingerprint: 194_64_65535_78dd6871cb6d/macOS][PLAIN TEXT (HTTP/1.1 500 Server Error)][Plen Bins: 33,33,33,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]