What is the “Startup Tasks” Windows forensic artifact?

Windows Startup Tasks encompass the various mechanisms used by the operating system to automatically launch applications, scripts, and background services upon system boot or user logon. These configurations are deeply embedded within the Windows Registry, primarily located in the SYSTEM hive (for background services and drivers), the SOFTWARE hive (for system-wide Run and RunOnce keys), and individual NTUSER.DAT hives (for user-specific autorun keys). By parsing these specific registry locations, investigators can enumerate exactly what software is instructed to start without manual user intervention.

For a DFIR investigator, analyzing startup tasks is arguably the most critical step in identifying malicious persistence. When an adversary compromises a system, their primary objective is often to ensure their malware or remote access trojan (RAT) survives system reboots. They achieve this by creating rogue background services or adding entries to the registry’s hidden Run keys. By extracting and reviewing these artifacts, investigators can quickly pinpoint unauthorized executables, suspicious command-line arguments, and hidden backdoors that attackers rely on to maintain their foothold within the environment.

Enterprise Forensic Applications

Startup task analysis is a cornerstone of threat hunting and incident response. During Proactive Compromise Assessments, TensorGuard automatically parses and aggregates registry-based persistence mechanisms across thousands of endpoints. This allows security teams to instantly identify anomalous services, unauthorized Remote Monitoring and Management (RMM) tools, and dormant malware staging that standard EDR solutions might have missed. By revealing exactly what is programmed to execute at boot, investigators can swiftly sever an attacker’s access and accelerate the remediation phase.

Collecting, Decoding, and Viewing “Startup Tasks” with TensorGuard

1. Create a TensorGuard account and sign in to the TensorGuard console at https://app.tensorguard.com.
2. Select “Case Manager”, then the plus button to create a case. This will contain your enrolled devices, their reports, and any manually submitted collections.
3. Linked inside the case menu, download the TensorGuard Forensic Collector and run it on your target system.
4. In the console, click the plus button for “New Enrollment”, copy the enrollment key, and paste it into the TensorGuard Forensic Collector on your target device.
5. Now that you have a device enrolled, select the device(s), and click “Send Signal”. Answer the questions regarding what you want to look for in the analysis, any alerting on positive findings, and if the collection and analysis should be recurring.
6. Once the report is generated, you’ll have Startup Tasks delivered in the browser, alongside an executive summary and timeline of findings.