20.12.41.6
Reported, waiting for confirmation by more independent servers.
- Attack types
sshd- First reported
- Sep 24, 2026, 10:28 AM UTC
- Last reported
- Nov 12, 2026, 5:32 AM UTC
- Network
- AS8075 Microsoft Corporation
- Location
- United States
Attacks by type
| Attack type | Incidents |
|---|---|
sshd | 6 |
Incidents by severity: Critical 1, Medium 2, Low 3
Incidents
These incidents come from 2 different servers. Each describes only its own history with this address, so a first ban on one can be a repeat ban on another.
sshdServer 1MediumAI verdict: malicious1 hitNov 12, 2026, 5:31 AM UTCsshdServer 2CriticalAI verdict: malicious5 hitsNov 11, 2026, 10:17 PM UTCsshdServer 2LowAI verdict: malicious1 hitNov 4, 2026, 11:23 AM UTCRecidivist opportunistic SSH brute-force from 20.12.41.6 (4th ban: 3 earlier bans in the recidive window, refused attempts included); shieldie-guard's sshd jail applied an escalated 28800s firewall ban; no evidence of targeting or successful auth.
sshdServer 2MediumAI verdict: malicious1 hitOct 22, 2026, 5:57 AM UTCPersistent recidivist SSH brute-force from 20.12.41.6 (4th ban, 3 earlier bans in the recidive window, including refused attempts) re-tripped shieldie-guard's sshd jail, which applied a 28800s firewall ban; the pattern looks like persistent automated scanning rather than a confirmed targeted attack, and there is no evidence of a successful login.
sshdServer 2LowAI verdict: malicious1 hitOct 12, 2026, 3:39 PM UTC20.12.41.6 re-tripped shieldie-guard's sshd jail with repeated SSH auth failures (3rd ban; 2 prior in the recidive window, refused attempts included), and shieldie-guard applied a 14400s firewall ban; this persistent recidivist behavior fits opportunistic automated brute-forcing, and the evidence shows no sign of a targeted attack or a successful login.
sshdServer 2LowAI verdict: malicious1 hitOct 12, 2026, 2:49 AM UTC20.12.41.6 re-tripped shieldie-guard's sshd jail with repeated SSH auth failures (2nd ban; 1 prior in the recidive window, refused attempts included), and shieldie-guard applied a 7200s firewall ban; this is consistent with persistent opportunistic brute-force noise, and the evidence does not indicate a targeted attack.
Timeline
- Nov 12, 2026, 5:32 AM UTCLast reported
- Nov 12, 2026, 5:31 AM UTC
sshdMedium - Nov 11, 2026, 10:17 PM UTC
sshdCritical - Nov 4, 2026, 11:23 AM UTC
sshdLow - Oct 22, 2026, 5:57 AM UTC
sshdMedium - Oct 12, 2026, 3:39 PM UTC
sshdLow - Oct 12, 2026, 2:49 AM UTC
sshdLow - Sep 24, 2026, 10:28 AM UTCFirst reported
Shown: attack type, severity, AI verdict and a short redacted summary as reported by shieldie servers. Server names, addresses, user names and log lines are never published.