> 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/rare-signature-signed-executable-executed-in-the-network.md).
# Rare signature signed executable executed in the network
### Synopsis
| Field | Value |
| -------------------- | ------------------------------------------------ |
| Activation Period | 14 Days |
| Training Period | 30 Days |
| Test Period | N/A (single event) |
| Deduplication Period | 30 Days |
| Required Data | XDR Agent |
| ATT\&CK Tactic | Defense Evasion (TA0005) |
| ATT\&CK Technique | Subvert Trust Controls: Code Signing (T1553.002) |
| Severity | Informational |
### Description
Attackers may use signed executables by less known vendors to bypass security features.
### Attacker's Goals
Adversaries may use signed binaries to bypass security features.
### Investigative actions
Check if this is legitimate software installed by a legitimate user and intentionally.
### Variations
Rare signature signed forensic tool remotely executed in the network
**Synopsis**
| Field | Value |
| ----------------- | ------------------------------------------------ |
| ATT\&CK Tactic | Defense Evasion (TA0005) |
| ATT\&CK Technique | Subvert Trust Controls: Code Signing (T1553.002) |
| Severity | Medium |
**Description**
Attackers may use signed executables by less known vendors to bypass security features.
**Attacker's Goals**
Adversaries may use signed binaries to bypass security features.
**Investigative actions**
Check if this is legitimate software installed by a legitimate user and intentionally.
* Check the capabilities of the forensic tool, for example if it can read data directly from the disk.
* Check other activities seen from the same remote IP address.
Rare signature signed forensic tool executed in the network
**Synopsis**
| Field | Value |
| ----------------- | ------------------------------------------------ |
| ATT\&CK Tactic | Defense Evasion (TA0005) |
| ATT\&CK Technique | Subvert Trust Controls: Code Signing (T1553.002) |
| Severity | Low |
**Description**
Attackers may use signed executables by less known vendors to bypass security features.
**Attacker's Goals**
Adversaries may use signed binaries to bypass security features.
**Investigative actions**
Check if this is legitimate software installed by a legitimate user and intentionally.
* Check the capabilities of the forensic tool, for example if it can read data directly from the disk.
Rare signature signed executable extracted from an internet-downloaded archive and executed in the network
**Synopsis**
| Field | Value |
| ----------------- | ------------------------------------------------ |
| ATT\&CK Tactic | Defense Evasion (TA0005) |
| ATT\&CK Technique | Subvert Trust Controls: Code Signing (T1553.002) |
| Severity | Low |
**Description**
Attackers may use signed executables by less known vendors to bypass security features.
**Attacker's Goals**
Adversaries may use signed binaries to bypass security features.
**Investigative actions**
Check if this is legitimate software installed by a legitimate user and intentionally.
Rare signature signed executable downloaded from an uncommon source and executed in the network
**Synopsis**
| Field | Value |
| ----------------- | ------------------------------------------------ |
| ATT\&CK Tactic | Defense Evasion (TA0005) |
| ATT\&CK Technique | Subvert Trust Controls: Code Signing (T1553.002) |
| Severity | Low |
**Description**
Attackers may use signed executables by less known vendors to bypass security features.
**Attacker's Goals**
Adversaries may use signed binaries to bypass security features.
**Investigative actions**
Check if this is legitimate software installed by a legitimate user and intentionally.
---
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