> 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/signed-process-performed-an-unpopular-injection.md).
# Signed process performed an unpopular injection
### 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 |
| ATT\&CK Tactic | Stealth (TA0005) |
| ATT\&CK Technique | Process Injection (T1055) |
| Severity | Informational |
### Description
A signed process performed an unpopular injection to another process.
### Attacker's Goals
Attackers may inject code into processes to evade process-based defenses, as well as possibly elevate privileges.
### Investigative actions
* Check whether the injecting process is benign and if this was a desired behavior as part of its normal execution flow.
### Variations
Signed process that got injected performed an unpopular and suspicious injection
**Synopsis**
| Field | Value |
| ----------------- | ------------------------- |
| ATT\&CK Tactic | Stealth (TA0005) |
| ATT\&CK Technique | Process Injection (T1055) |
| Severity | Medium |
**Description**
A signed process performed an unpopular injection to another process.
**Attacker's Goals**
Attackers may inject code into processes to evade process-based defenses, as well as possibly elevate privileges.
**Investigative actions**
* Check whether the injecting process is benign and if this was a desired behavior as part of its normal execution flow.
Signed process that got injected performed an unpopular and suspicious injection
**Synopsis**
| Field | Value |
| ----------------- | ------------------------- |
| ATT\&CK Tactic | Stealth (TA0005) |
| ATT\&CK Technique | Process Injection (T1055) |
| Severity | Medium |
**Description**
A signed process performed an unpopular injection to another process.
**Attacker's Goals**
Attackers may inject code into processes to evade process-based defenses, as well as possibly elevate privileges.
**Investigative actions**
* Check whether the injecting process is benign and if this was a desired behavior as part of its normal execution flow.
Signed process that got injected performed an unpopular injection
**Synopsis**
| Field | Value |
| ----------------- | ------------------------- |
| ATT\&CK Tactic | Stealth (TA0005) |
| ATT\&CK Technique | Process Injection (T1055) |
| Severity | Medium |
**Description**
A signed process performed an unpopular injection to another process.
**Attacker's Goals**
Attackers may inject code into processes to evade process-based defenses, as well as possibly elevate privileges.
**Investigative actions**
* Check whether the injecting process is benign and if this was a desired behavior as part of its normal execution flow.
Commonly abused signed process performed a globally unpopular injection to a Microsoft signed process
**Synopsis**
| Field | Value |
| ----------------- | ------------------------- |
| ATT\&CK Tactic | Stealth (TA0005) |
| ATT\&CK Technique | Process Injection (T1055) |
| Severity | Medium |
**Description**
A signed process performed an unpopular injection to another process.
**Attacker's Goals**
Attackers may inject code into processes to evade process-based defenses, as well as possibly elevate privileges.
**Investigative actions**
* Check whether the injecting process is benign and if this was a desired behavior as part of its normal execution flow.
Signed process performed an unpopular injection
**Synopsis**
| Field | Value |
| ----------------- | ------------------------- |
| ATT\&CK Tactic | Stealth (TA0005) |
| ATT\&CK Technique | Process Injection (T1055) |
| Severity | Low |
**Description**
A signed process performed an unpopular injection to another process.
**Attacker's Goals**
Attackers may inject code into processes to evade process-based defenses, as well as possibly elevate privileges.
**Investigative actions**
* Check whether the injecting process is benign and if this was a desired behavior as part of its normal execution flow.
Signed process executed by a scheduled task performed an unpopular injection
**Synopsis**
| Field | Value |
| ----------------- | ------------------------- |
| ATT\&CK Tactic | Stealth (TA0005) |
| ATT\&CK Technique | Process Injection (T1055) |
| Severity | Low |
**Description**
A signed process performed an unpopular injection to another process.
**Attacker's Goals**
Attackers may inject code into processes to evade process-based defenses, as well as possibly elevate privileges.
**Investigative actions**
* Check whether the injecting process is benign and if this was a desired behavior as part of its normal execution flow.
---
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