"timestamp": "2024-10-16T??:??:??Z", "src_ip": "10.16.??.??", "dest_port": 244, "protocol": "TCP", "app_proto": "ftp", "banner": "1oo 244 ftp server"
Below is a simulated interpreting this artifact. Security Analysis of an Anomalous FTP Artifact: 10.16 1oo 244 ftp server Document ID: FOR-2024-10.16 TLP: Clear 1. Abstract This paper analyzes a cryptic network log entry: 10.16 1oo 244 ftp server . We deconstruct the string into plausible components: an IP prefix ( 10.16 ), a numeric sequence ( 1oo 244 containing an octal-like 1oo ), and a service declaration ( ftp server ). We conclude this likely represents a corrupted or intentionally obfuscated banner from a misconfigured FTP server on a private network, with the 1oo suggesting octal interpretation of port or status codes. 2. Deconstruction & Interpretation | Token | Raw Value | Possible Meaning | |-------|-----------|------------------| | 10.16 | IP prefix | Class A private IPv4 address block (10.0.0.0/8). Suggests internal network. Complete IP likely 10.16.x.x . | | 1oo | Alphanumeric | Not standard decimal. Resembles 100 but with letters oo . Could be octal 100 (decimal 64) or leetspeak ( loo = 100?). | | 244 | Decimal | Common FTP port? No. Alternative: HTTP status 244 (unknown), or part of IP: 10.16.1.244 ? | | ftp server | Service | Explicit declaration. Likely from 220 welcome banner or login prompt. | 10.16 1oo 244 ftp server
Search for surrounding entries. Look for USER anonymous , PASS , RETR to determine exploitation. 10.16 1oo 244 ftp server is most consistent with an FTP server running on private IP 10.16.1.100 at port 244 , where 1oo is a corrupted rendering of 100 (due to octal, font, or encoding error). No standard FTP reply code is 244, and 1oo has no valid FTP meaning. "timestamp": "2024-10-16T