> 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/ip-rotation-pattern-in-sso-spray.md).
# IP Rotation Pattern in SSO Spray
### Synopsis
| Field | Value |
| -------------------- | -------------------------------------------------------------------------------------------------------------------------------- |
| Activation Period | 14 Days |
| Training Period | 30 Days |
| Test Period | 1 Hour |
| Deduplication Period | 1 Day |
| Required Data | Requires one of the following data sources:
AzureAD OR Azure SignIn Log OR Idira OR Duo OR Okta OR OneLogin OR PingOne
|
| Detection Modules | Identity Analytics |
| ATT\&CK Tactic | Credential Access (TA0006), Resource Development (TA0042) |
| ATT\&CK Technique | Brute Force: Password Spraying (T1110.003), Brute Force: Password Guessing (T1110.001), Compromise Accounts (T1586) |
| Severity | Informational |
### Description
A high volume of SSO authentication attempts was observed in a short time window. This behavior may indicate a password spray attack targeting multiple accounts.
### Attacker's Goals
An attacker may be attempting to compromise user accounts through unauthorized access attempts.
### Investigative actions
* Determine if the activity was performed by a legitimate user.
* Check for any successful logins that occurred following a series of failed attempts.
* Investigate the AS organization and evaluate the ASN's reputation for malicious activity.
* Review historical login behavior from the same IP addresses or ASN.
* Validate whether MFA was triggered or bypassed during the authentication attempts.
### Variations
Potential Targeted SSO Password Spray Activity Detected
**Synopsis**
| Field | Value |
| ----------------- | ------------------------------------------------------------------------------------------------------------------- |
| ATT\&CK Tactic | Credential Access (TA0006), Resource Development (TA0042) |
| ATT\&CK Technique | Brute Force: Password Spraying (T1110.003), Brute Force: Password Guessing (T1110.001), Compromise Accounts (T1586) |
| Severity | Medium |
**Description**
A high volume of SSO authentication attempts was observed in a short time window. This behavior may indicate a password spray attack targeting multiple accounts.
**Attacker's Goals**
An attacker may be attempting to compromise user accounts through unauthorized access attempts.
**Investigative actions**
* Determine if the activity was performed by a legitimate user.
* Check for any successful logins that occurred following a series of failed attempts.
* Investigate the AS organization and evaluate the ASN's reputation for malicious activity.
* Review historical login behavior from the same IP addresses or ASN.
* Validate whether MFA was triggered or bypassed during the authentication attempts.
Suspicious SSO Login Attempts from Multiple IPs
**Synopsis**
| Field | Value |
| ----------------- | ------------------------------------------------------------------------------------------------------------------- |
| ATT\&CK Tactic | Credential Access (TA0006), Resource Development (TA0042) |
| ATT\&CK Technique | Brute Force: Password Spraying (T1110.003), Brute Force: Password Guessing (T1110.001), Compromise Accounts (T1586) |
| Severity | Low |
**Description**
A high volume of SSO authentication attempts was observed in a short time window. This behavior may indicate a password spray attack targeting multiple accounts.
**Attacker's Goals**
An attacker may be attempting to compromise user accounts through unauthorized access attempts.
**Investigative actions**
* Determine if the activity was performed by a legitimate user.
* Check for any successful logins that occurred following a series of failed attempts.
* Investigate the AS organization and evaluate the ASN's reputation for malicious activity.
* Review historical login behavior from the same IP addresses or ASN.
* Validate whether MFA was triggered or bypassed during the authentication attempts.
---
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