> For the complete documentation index, see [llms.txt](https://cortex-docs.paloaltonetworks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cortex-docs.paloaltonetworks.com/analytics-alerts/alerts-by-name/globally-uncommon-injection-from-a-signed-process.md).
# Globally uncommon injection from a signed process
### Synopsis
| Field | Value |
| -------------------- | --------------------------------------------------------------------------------------------------------- |
| Activation Period | 14 Days |
| Training Period | 30 Days |
| Test Period | N/A (single event) |
| Deduplication Period | 1 Day |
| Required Data | XDR Agent |
| Detector Tags | Injection Analytics, Global Anomaly Analytics |
| ATT\&CK Tactic | Stealth (TA0005), Persistence (TA0003) |
| ATT\&CK Technique | System Binary Proxy Execution (T1218), Process Injection (T1055), Compromise Host Software Binary (T1554) |
| Severity | Informational |
### Description
A signed process injected into another process that it does not normally target at a global level.
### Attacker's Goals
Attackers may use various methods to execute code in the context of a signed process to avoid detection.
### Investigative actions
* Check if the actor process loaded a suspicious DLL before the alert.
* Check if the actor process was injected before the alert.
* Check if the process execution and connections are legitimate.
### Variations
Globally uncommon suspicious injection from a signed process
**Synopsis**
| Field | Value |
| ----------------- | --------------------------------------------------------------------------------------------------------- |
| ATT\&CK Tactic | Stealth (TA0005), Persistence (TA0003) |
| ATT\&CK Technique | System Binary Proxy Execution (T1218), Process Injection (T1055), Compromise Host Software Binary (T1554) |
| Severity | Medium |
**Description**
A non-injected thread in a signed process with a suspicious injection type injected into another process that it does not normally target at a global level.
**Attacker's Goals**
Attackers may use various methods to execute code in the context of a signed process to avoid detection.
**Investigative actions**
* Check if the actor process loaded a suspicious DLL before the alert.
* Check if the actor process was injected before the alert.
* Check if the process execution and connections are legitimate.
Globally uncommon injection from a signed process which was executed by a scheduled task
**Synopsis**
| Field | Value |
| ----------------- | --------------------------------------------------------------------------------------------------------- |
| ATT\&CK Tactic | Stealth (TA0005), Persistence (TA0003) |
| ATT\&CK Technique | System Binary Proxy Execution (T1218), Process Injection (T1055), Compromise Host Software Binary (T1554) |
| Severity | Low |
**Description**
A signed process injected into another process that it does not normally target at a global level.
**Attacker's Goals**
Attackers may use various methods to execute code in the context of a signed process to avoid detection.
**Investigative actions**
* Check if the actor process loaded a suspicious DLL before the alert.
* Check if the actor process was injected before the alert.
* Check if the process execution and connections are legitimate.
Globally uncommon injection from a signed process
**Synopsis**
| Field | Value |
| ----------------- | --------------------------------------------------------------------------------------------------------- |
| ATT\&CK Tactic | Stealth (TA0005), Persistence (TA0003) |
| ATT\&CK Technique | System Binary Proxy Execution (T1218), Process Injection (T1055), Compromise Host Software Binary (T1554) |
| Severity | Low |
**Description**
A signed process injected into another process that it does not normally target at a global level.
**Attacker's Goals**
Attackers may use various methods to execute code in the context of a signed process to avoid detection.
**Investigative actions**
* Check if the actor process loaded a suspicious DLL before the alert.
* Check if the actor process was injected before the alert.
* Check if the process execution and connections are legitimate.
---
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