Maximum Danger
IP 77.83.240.44 is a critical-risk address with a 10/10 threat level that has accumulated 1,034 total abuse reports, primarily documenting SSH brute-force attacks and broader hacking activity originating from infrastructure operated by Alsycon B.V. under ASN AS49870. Despite the IP being geolocated to the United States and operated by a Dutch entity, the confirmed activity across 20 automated honeypot sensors establishes a clear pattern of automated intrusion attempts targeting exposed SSH services. The high report volume and the nature of the threats make this address particularly dangerous for any publicly accessible Linux servers or network appliances running default SSH configurations.
The confidence score of 61% reflects that while the malicious activity is well-documented, some variables in the attribution chain cannot be fully verified — a common nuance with large-scale scanning infrastructure that may pass through proxies, NAT gateways, or compromised residential endpoints before reaching honeypots. The first reports surfaced in August 2025, with continued activity through September 2025, indicating a sustained campaign rather than a brief probe. The activity frequency reading of 0/10 suggests the most recent direct engagement with honeypot sensors has subsided in recent weeks, but the historical record demonstrates persistent intent to compromise SSH credentials through brute-force methods.
SSH brute-force attacks represent one of the most common initial access vectors in real-world breaches, where attackers systematically attempt credential combinations against exposed servers until finding a valid login. This pattern allows threat actors to pivot from a single compromised server into broader network infrastructure, deploy ransomware, exfiltrate data, or establish persistent backdoor access. The hacking category reports supplement this by indicating exploitation attempts beyond simple credential guessing, potentially including attempts against known SSH vulnerabilities or misconfiguration abuse.
Organizations running publicly accessible SSH services should treat IP 77.83.240.44 as a confirmed malicious source and block it at the network perimeter firewall or edge router level. Deploying fail2ban or equivalent intrusion-prevention tools to dynamically ban IP addresses after repeated failed authentication attempts will significantly reduce exposure to credential-guessing campaigns. Switching to key-based authentication exclusively, disabling password authentication entirely, and moving SSH to a non-default port will harden services against automated scanning tools that target standard configurations. Continuous monitoring of authentication logs and alerting on anomalous login patterns from known abusive ASNs adds an additional defensive layer against this class of threat.