AN1207: Analytic 1207
Abuse of mavinject.exe to inject DLLs or import descriptors into another running process. Chain: (1) mavinject.exe starts with /INJECTRUNNING or /HMODULE → (2) mavinject obtains high-access handles to a target process (VM_WRITE/CREATE_THREAD) → (3) target process loads attacker DLL (module load) → (4) optional follow-on child activity or network egress from the target process.
Analyst context for executives and security teams
This analytic describes suspicious use of Windows mavinject.exe to inject a DLL or import descriptors into an already running process. For leaders, the practical issue is that a legitimate Microsoft-signed utility can be used to make malicious code run inside another process, which can complicate triage, ownership of activity, and containment decisions.
Executive priority
Prioritize validation where Windows endpoints support critical operations or privileged administration. The decision value is whether the organization can prove, during an incident or audit, that it can see legitimate utilities obtaining high-access process handles, unexpected module loads into target processes, and follow-on activity from the injected process. If that evidence is missing, incident responders may struggle to determine which process actually initiated malicious behavior.
Technical view
SOC and IR teams should validate visibility for mavinject.exe execution with /INJECTRUNNING or /HMODULE, process access patterns where mavinject obtains VM_WRITE or CREATE_THREAD rights to another process, module-load events in the target process, and any subsequent child process or network activity from that target. Because no official detection logic is supplied, teams should treat this as a detection engineering requirement rather than a ready-made rule. Scope is Windows only based on the supplied platform field.
Likely telemetry
- Windows process creation events including command line arguments for mavinject.exe
- Process access telemetry showing requested rights such as VM_WRITE and CREATE_THREAD against a target process
- Image or module load telemetry from the target process after mavinject activity
- Parent-child process relationships involving mavinject.exe and the target process
- Network connection telemetry tied to the target process after injection
Detection direction
- Validate alerts or hunts for mavinject.exe launched with /INJECTRUNNING or /HMODULE.
- Correlate mavinject execution with high-access handles to another running process and subsequent module loads in that target process.
- Review follow-on child activity or network egress from the target process, not just from mavinject.exe, because injected code may execute under the target process context.
- Tune carefully for legitimate administrative or diagnostic use of mavinject.exe where present; require correlation with unusual target processes, unexpected DLL paths, or follow-on behavior to reduce noise.
- Document visibility gaps explicitly, especially if process access or module-load telemetry is not collected.
Mitigation priorities
- Inventory and baseline legitimate use of mavinject.exe on Windows systems before enforcing restrictive controls.
- Ensure endpoint logging or EDR collection captures process creation, command line, process access, module load, and network activity needed for correlation.
- Apply application control or allowlisting policy where appropriate to limit unauthorized use of legitimate utilities, while accounting for operational dependencies.
- Strengthen incident response playbooks to investigate the target process context, loaded modules, and follow-on behavior rather than terminating analysis at mavinject.exe.
- Use the analytic as compliance and readiness evidence only after validating that required telemetry is collected and reviewed.
Analyst notes and limits
The supplied ATT&CK object is a detection analytic for Windows behavior involving mavinject.exe abuse. It includes a behavior chain but no official detection text, no tactics, and no relationship context. Defensive value depends heavily on local telemetry quality and the ability to correlate multiple event classes.
This take is limited to the supplied official fields. It does not assert active exploitation, actor attribution, impact, or guaranteed detection. No non-Windows platforms, related techniques, mitigations, or specific detection rules are inferred because they were not supplied.
Analytic 1207
Abuse of mavinject.exe to inject DLLs or import descriptors into another running process. Chain: (1) mavinject.exe starts with /INJECTRUNNING or /HMODULE → (2) mavinject obtains high-access handles to a target process (VM_WRITE/CREATE_THREAD) → (3) target process loads attacker DLL (module load) → (4) optional follow-on child activity or network egress from the target process.
How security teams should use this page
Treat this object as behavior context, not an attribution claim. Validate the related groups, software, data sources, and mitigations against official ATT&CK relationships and your own telemetry before making control-coverage decisions.
All related ATT&CK context
No relationships are available in the current normalized data for this object.
Object version and sync metadata
The fields below describe the current mirrored snapshot. When Glexia retains multiple ATT&CK source imports, you can open the table to compare the same object across releases (hashes and MITRE timestamps). For MITRE’s own release notes and roadmap, see ATT&CK resources — Updates .
Imported snapshots across ATT&CK releases (1)
| Release | Bundle imported | Object version | Modified | Status | Raw hash |
|---|---|---|---|---|---|
| 19.1 | 1.0 | Current bundle | dd8b977d96ca… |
Mirrored ATT&CK source object
The raw object is retained through the mirrored ATT&CK source bundle and object hash. The raw endpoint returns the exact object from the mirrored bundle when available.
External references and citations
MITRE external references are preserved separately from Glexia analysis so citations remain traceable to their original source records.
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mitre-attack AN1207Open source URL
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