Digiloader1.exe Official

This paper examines digiloader1.exe, a Windows executable observed in malware investigations. It summarizes methods for static and dynamic analysis, indicators of compromise (IOCs), typical malicious behaviors, mitigation strategies, and recommended next steps for incident responders.

| Characteristic | Legitimate | Malicious | |----------------|------------|------------| | Digital Signature | Valid from Digi International | Missing or invalid | | File Location | Program Files\Digi | AppData\Roaming, Temp, Windows | | Process Parent | Digi software (e.g., DigiConfig.exe) | Spawned by cmd.exe, powershell.exe, or script | | Behavior | Runs < 1 minute, then exits | Runs persistently, high CPU, network connections | | Network activity | Local UDP broadcasts only | Connections to unknown IPs (e.g., port 4444, 1337) |

5.1. Process behavior

5.2. Filesystem and persistence

5.3. Network activity

5.4. Memory and unpacking

5.5. Anti-analysis measures

(Explicit IOCs require a sample; compute and insert hashes, domains, paths when available.)