> 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/a-user-sent-multiple-tgt-requests-to-irregular-service.md).
# A user sent multiple TGT requests to irregular service
### Synopsis
| Field | Value |
| -------------------- | ----------------------------------------------------------------------------------------------------------------------------- |
| Activation Period | 14 Days |
| Training Period | 30 Days |
| Test Period | 10 Minutes |
| Deduplication Period | 1 Day |
| Required Data | Requires one of the following data sources:
Windows Event Collector OR XDR Agent with eXtended Threat Hunting (XTH)
|
| Detection Modules | Identity Analytics |
| ATT\&CK Tactic | Credential Access (TA0006) |
| ATT\&CK Technique | Steal or Forge Kerberos Tickets: Kerberoasting (T1558.003) |
| Severity | Low |
### Description
A user sent multiple TGT requests to services other than KRBTGT and KADMIN. This is typically a sign of a Kerberoasting attack.
### Attacker's Goals
Crack account credentials by obtaining an easy-to-crack Kerberos ticket.
### Investigative actions
Check who used the host at the time of the alert, to rule out a benign service or tool requesting weak Kerberos encryption.
### Variations
A user sent an excessive number of TGT requests to irregular services
**Synopsis**
| Field | Value |
| ----------------- | ---------------------------------------------------------- |
| ATT\&CK Tactic | Credential Access (TA0006) |
| ATT\&CK Technique | Steal or Forge Kerberos Tickets: Kerberoasting (T1558.003) |
| Severity | Medium |
**Description**
A user sent multiple TGT requests to services other than KRBTGT and KADMIN. This is typically a sign of a Kerberoasting attack.
**Attacker's Goals**
Crack account credentials by obtaining an easy-to-crack Kerberos ticket.
**Investigative actions**
Check who used the host at the time of the alert, to rule out a benign service or tool requesting weak Kerberos encryption.
A user sent a TGT request to irregular service
**Synopsis**
| Field | Value |
| ----------------- | ---------------------------------------------------------- |
| ATT\&CK Tactic | Credential Access (TA0006) |
| ATT\&CK Technique | Steal or Forge Kerberos Tickets: Kerberoasting (T1558.003) |
| Severity | Informational |
**Description**
A user sent a TGT request to a service other than KRBTGT and KADMIN. This might indicate an attempt to perform a Kerberoasting attack.
**Attacker's Goals**
Crack account credentials by obtaining an easy-to-crack Kerberos ticket.
**Investigative actions**
Check who used the host at the time of the alert, to rule out a benign service or tool requesting weak Kerberos encryption.
---
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