AN0610: Analytic 0610
Adversary manipulation of shared library paths, environment variables, or replacement of service binaries. Defender observes suspicious modifications in /etc/ld.so.preload, service config changes, or file writes replacing existing executables.
Analyst context for executives and security teams
This analytic is about Linux persistence or execution risk created when an adversary changes how shared libraries are loaded, alters service configuration, or replaces service binaries. For leaders, the practical issue is not the specific file alone; it is whether the organization can prove that critical Linux services have not been silently redirected or replaced, especially on systems supporting business operations, cloud workloads, or regulated services.
Executive priority
Prioritize this where Linux servers support critical applications, privileged services, or operational dependencies. The decision value is to validate whether SOC and incident response teams can see high-risk changes to loader configuration, service definitions, and existing executables quickly enough to contain service compromise. This also supports audit and compliance evidence around change control, privileged activity monitoring, and integrity protection for production systems.
Technical view
For SOC, detection engineering, and IR teams, validate monitoring for suspicious modifications to /etc/ld.so.preload, service configuration changes, and file writes that replace existing executables on Linux. Because ATT&CK provides no official detection logic or tactic mapping for this analytic, teams should treat it as a validation target: confirm collection, establish known-good baselines for service files and binaries, and review whether alerts distinguish authorized maintenance from unexpected privileged changes.
Likely telemetry
- Linux file modification events for /etc/ld.so.preload
- File write or overwrite events involving existing service executables
- Service configuration change records on Linux systems
- Process and user context associated with file or service changes
- Privileged account activity around system paths and service management
Detection direction
- Validate that Linux endpoint or host telemetry records writes to /etc/ld.so.preload and changes to service configuration files.
- Tune detections around replacement of existing executables rather than only creation of new files, since the analytic explicitly includes binary replacement.
- Correlate file and service changes with user, process, host role, and approved maintenance windows to reduce false positives from patching or legitimate deployments.
- Prioritize critical servers and privileged service accounts first, because local environment context is required to decide whether a change is suspicious.
- Account for blind spots where host logging is incomplete, ephemeral systems are not monitored, or file integrity monitoring excludes system loader and service paths.
Mitigation priorities
- Establish and enforce change control for Linux service configuration and system executable paths.
- Use least privilege for accounts capable of modifying service files, loader configuration, or existing executables.
- Maintain file integrity or configuration monitoring for critical Linux service paths and /etc/ld.so.preload.
- Baseline expected service binaries and configurations for critical systems so incident responders can quickly identify unauthorized changes.
- Ensure incident response playbooks include validation of loader configuration, service definitions, and executable integrity during Linux investigations.
Analyst notes and limits
This object is a detection analytic, not a full ATT&CK technique entry. The supplied description focuses on defender-observable changes: shared library path manipulation, environment-variable-related manipulation, service configuration changes, /etc/ld.so.preload modification, and replacement of existing executables. No relationship context, tactics, or official detection logic were supplied, so the most useful action is coverage validation against Linux telemetry and local change-control data.
ATT&CK fields supplied for this object are sparse: platform is Linux, tactics are not specified, official detection is not provided, and no relationships are supplied. This take does not infer adversary groups, active exploitation, impact, or guaranteed detection. Local asset criticality, logging depth, file paths, service managers, and approved administrative workflows are required to operationalize it.
Analytic 0610
Adversary manipulation of shared library paths, environment variables, or replacement of service binaries. Defender observes suspicious modifications in /etc/ld.so.preload, service config changes, or file writes replacing existing executables.
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 | 99e2d42a1b62… |
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 AN0610Open source URL
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