Threat Level: green Handler on Duty: Didier Stevens

SANS ISC: SSH Scanning Activity SSH Scanning Activity

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Top 10 Usernames Attempted Today
Username Attempts Percent
admin 1,629,820 39.24%
root 891,974 21.48%
sh 325,253 7.83%
enable 291,341 7.01%
linuxshell 211,629 5.10%
iptables -F 205,039 4.94%
support 57,518 1.38%
user 56,910 1.37%
guest 49,269 1.19%
enable 25,011 0.60%
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Top 10 Usernames Attempted This Month
Username Attempts Percent
root 41,381,476 28.90%
admin 40,709,135 28.43%
sh 6,447,064 4.50%
enable 4,108,068 2.87%
enable 3,574,270 2.50%
system 3,283,231 2.29%
shell 3,123,395 2.18%
support 2,427,830 1.70%
user 2,198,581 1.54%
>/var/.ptmx && cd /var/ 1,853,464 1.29%
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Top 20 Usernames Attempted This Year
Username Attempts Percent
admin 34,538,942 44.58%
root 20,109,177 25.95%
support 3,106,338 4.01%
user 2,719,939 3.51%
sh 2,578,800 3.33%
enable 2,216,935 2.86%
guest 766,967 0.99%
linuxshell 656,755 0.85%
iptables -F 609,893 0.79%
enable 587,584 0.76%
Administrator 390,341 0.50%
supervisor 370,237 0.48%
ubnt 364,637 0.47%
system 309,672 0.40%
shell 304,336 0.39%
default 302,984 0.39%
pi 228,715 0.30%
service 217,865 0.28%
666666 200,471 0.26%
888888 198,786 0.26%
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Usernames Attempted This Year By Character Length
Length Attempts Percent
1 170,001 0.22%
2 2,997,882 3.87%
3 962,305 1.24%
4 23,869,540 30.81%
5 36,012,089 46.48%
6 4,610,841 5.95%
7 4,843,720 6.25%
8 406,925 0.53%
9 232,885 0.30%
10 1,152,044 1.49%
11 771,106 1.00%
12 82,369 0.11%
13 433,596 0.56%
14 25,331 0.03%
15 18,065 0.02%
16 11,884 0.02%
17 11,925 0.02%
18 1,351 0.00%
19 4,475 0.01%
20 4,348 0.01%