> 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/suspicious-process-modified-rc-script-file.md).
# Suspicious process modified RC script file
### 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 with eXtended Threat Hunting (XTH) |
| Detector Tags | Kubernetes - AGENT, Containers |
| ATT\&CK Tactic | Persistence (TA0003), Privilege Escalation (TA0004) |
| ATT\&CK Technique | Boot or Logon Initialization Scripts: RC Scripts (T1037.004) |
| Severity | Low |
### Description
A suspicious process modified an RC script file. These files allow system administrators to map and start custom services at startup for different run levels. This may be done to establish persistence.
### Attacker's Goals
Adversaries may establish persistence by modifying RC scripts, which are executed during a Unix-like system's startup.
### Investigative actions
Check the modified RC script file and try to understand the impact of the file modification.
### Variations
Suspicious process modified RC script file in a Kubernetes pod
**Synopsis**
| Field | Value |
| ----------------- | ------------------------------------------------------------ |
| ATT\&CK Tactic | Persistence (TA0003), Privilege Escalation (TA0004) |
| ATT\&CK Technique | Boot or Logon Initialization Scripts: RC Scripts (T1037.004) |
| Severity | Low |
**Description**
A suspicious process modified an RC script file. These files allow system administrators to map and start custom services at startup for different run levels. This may be done to establish persistence.
**Attacker's Goals**
Adversaries may establish persistence by modifying RC scripts, which are executed during a Unix-like system's startup.
**Investigative actions**
Check the modified RC script file and try to understand the impact of the file modification.
---
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