This IP address has been reported a total of
70
times from
65 distinct
sources.
18.220.203.55 was first reported on
, and the most recent report was
.
Recent Reports:
We have received reports of abusive activity from this IP address within the last week. It is
potentially still actively engaged in abusive activities.
Unsolicited TCP connection from 18.220.203.55 to port 0 at 2026-05-31T19:41:50Z. Source IP completed ...
show moreUnsolicited TCP connection from 18.220.203.55 to port 0 at 2026-05-31T19:41:50Z. Source IP completed three-way handshake to non-public service on this host. Detected by automated intrusion monitoring.
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May 28 18:26:03 saltoalvacio postfix/smtpd[753865]: improper command pipelining after CONNECT from e ...
show moreMay 28 18:26:03 saltoalvacio postfix/smtpd[753865]: improper command pipelining after CONNECT from ec2-18-220-203-55.us-east-2.compute.amazonaws.com[18.220.203.55]: GET / HTTP/1.1\r\nHost: 107.174.232.66:25\r\nUser-Agent: visionheight.com/scan Mozilla/5.0 (Macintosh; I
May 28 18:26:05 saltoalvacio postfix/smtpd[753865]: improper command pipelining after CONNECT from ec2-18-220-203-55.us-east-2.compute.amazonaws.com[18.220.203.55]: \n
May 28 18:27:43 saltoalvacio postfix/smtpd[753865]: improper command pipelining after CONNECT from ec2-18-220-203-55.us-east-2.compute.amazonaws.com[18.220.203.55]: GET / HTTP/1.1\r\nHost: 107.174.232.66:25\r\nUser-Agent: visionheight.com/scan Mozilla/5.0 (Macintosh; I
May 28 18:29:42 saltoalvacio postfix/smtpd[753865]: improper command pipelining after CONNECT from ec2-18-220-203-55.us-east-2.compute.amazonaws.com[18.220.203.55]: \026\003\001\000{\001\000\000w\003\003txw\302>\366\263~\3507\237\271\235+\234X\0007 Kc\037\037d\221\306\313\302\032\213\312\205
...
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2026-05-28T18:25:48.568881+02:00 [redacted] postfix/smtpd[2326406]: improper command pipelining afte ...
show more2026-05-28T18:25:48.568881+02:00 [redacted] postfix/smtpd[2326406]: improper command pipelining after CONNECT from ec2-18-220-203-55.us-east-2.compute.amazonaws.com[18.220.203.55]: n
2026-05-28T18:25:50.814095+02:00 [redacted] postfix/smtpd[2326406]: improper command pipelining after CONNECT from ec2-18-220-203-55.us-east-2.compute.amazonaws.com[18.220.203.55]: GET / HTTP/1.1rnHost: [redacted]:25rnUser-Agent: visionheight.com/scan Mozilla/5.0 (Macintosh;
2026-05-28T18:29:28.511870+02:00 [redacted] postfix/smtpd[2326510]: improper command pipelining after CONNECT from ec2-18-220-203-55.us-east-2.compute.amazonaws.com[18.220.203.55]: 026003001000{001000000w003003,&m370v,026215252a357342h/332na>q355306FpWt215345232360337327313000000032300/300+300021300a300023300t300024300n000005000/0005300022000n0010000004000005000005001000000000000000n000b000006000027000030000031000v000
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2026-05-28 19:25:13 SMTP call from ec2-18-220-203-55.us-east-2.compute.amazonaws.com [18.220.203.55] ...
show more2026-05-28 19:25:13 SMTP call from ec2-18-220-203-55.us-east-2.compute.amazonaws.com [18.220.203.55] dropped: too many unrecognized commands (last was "Accept: */*")
2026-05-28 19:26:51 SMTP call from ec2-18-220-203-55.us-east-2.compute.amazonaws.com [18.220.203.55] dropped: too many unrecognized commands (last was "Accept: */*")
2026-05-28 19:28:50 SMTP call from ec2-18-220-203-55.us-east-2.compute.amazonaws.com [18.220.203.55] dropped: too many syntax or protocol errors (last command was "?\b?\006?\027?\030?\031?\v?\002\001??\r?\020?\016\004\001\004\003\002\001\002\003\004\001\005\001\006\001๏ฟฝ\001?\001?\025\003\001?\002\002", NULL)
...
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