[Snort-users] Double Logging?



After going through a rather large event this morning, I noticed that when
SNORT (v. 1.9.0 on RH 7.2) logged the packet payload to a binary file, it
"double logged" the events.  One entry contained the absolute TCP Sequence
number and the next event contained the relative sequence number.  This was
a rather large event - 45000+ hits, but turns out to be over 90000+ hits due
to the double logging of packets.  Any ideas what might have caused this?


Thanks,

Paul


Sample Entry:

02:00:30.620000 168.49.233.2.4729 > MY.NET.131.8.80: P [tcp sum ok]
1604735253:1604735318(65) ack 2153141295 win 8760 (DF) (ttl 107, id 17065,
len 105)
0x0000   4500 0069 42a9 4000 6b06 191b a831 e902        E..iB.@.k....1..
0x0010   xxyy 8308 1279 0050 5fa6 5115 8056 542f        .....y.P_.Q..VT/
0x0020   5018 2238 8bb0 0000 4845 4144 202f 4d53        P."8....HEAD./MS
0x0030   4144 432f 726f 6f74 2e65 7865 3f2f 632b        ADC/root.exe?/c+
0x0040   6469 722b 633a 5c20 4854 5450 2f31 2e30        dir+c:\.HTTP/1.0
0x0050   0d0a 486f 7374 3a20 3135 392e 3134 322e        ..Host:.MY.NET.
0x0060   3133 312e 380d 0a0d 0a                         131.8....

02:00:30.620000 168.49.233.2.4729 > MY.NET.131.8.80: P [tcp sum ok] 0:65(65)
ack 1 win 8760 (DF) (ttl 107, id 17065, len 105)
0x0000   4500 0069 42a9 4000 6b06 191b a831 e902        E..iB.@.k....1..
0x0010   xxyy  8308 1279 0050 5fa6 5115 8056 542f        .....y.P_.Q..VT/
0x0020   5018 2238 8bb0 0000 4845 4144 202f 4d53        P."8....HEAD./MS
0x0030   4144 432f 726f 6f74 2e65 7865 3f2f 632b        ADC/root.exe?/c+
0x0040   6469 722b 633a 5c20 4854 5450 2f31 2e30        dir+c:\.HTTP/1.0
0x0050   0d0a 486f 7374 3a20 3135 392e 3134 322e        ..Host:.MY.NET.
0x0060   3133 312e 380d 0a0d 0a                         131.8....


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