Goksel Atakan
@gokselatakanIstanbul, Turkiye GoXDR.fyiTrusted contributorCompletionist
0 followers35 downloads1,209 copies35 likes2,469 views
74 detections
Filters
Last updated
All Time
Detection languages
64
10
Categories
15
14
13
13
10
Platforms
27
20
16
13
12
Products / Services
16
14
11
11
8
MITRE Techniques
37
25
18
16
15
CVEs
3
2
2
1
1
Browser sign-ins and MFA prompts with medium or high sign-in risk from devices that have no Entra device identity and are not managed or compliant. Hunting query, not an alert.
Users who received a delivered phishing email and then signed in from an IP not seen for them in the prior 30 days within 24 hours. Hunting query, not an alert.
Hunts for sqlservr.exe spawning command shells or system utilities, a pattern consistent with xp_cmdshell abuse. It also flags later steps from a public intrusion write-up: certutil decoding, SAM, SYSTEM or SECURITY hive saves and local account or group changes.
Results are grouped per device and day and ranked by stage count. Rows can also appear without a SQL parent when two later stages occur on the same device and day.
Triage: Some jobs use xp_cmdshell legitimately. Review the command line and the account. Hunting query, not an alert.
Limitations: Activity inside the SQL process with no child process is not visible. Renamed tools, obfuscation and privilege escalation tools are not covered. Needs Defender for Endpoint on the SQL servers.
Results are grouped per device and day and ranked by stage count. Rows can also appear without a SQL parent when two later stages occur on the same device and day.
Triage: Some jobs use xp_cmdshell legitimately. Review the command line and the account. Hunting query, not an alert.
Limitations: Activity inside the SQL process with no child process is not visible. Renamed tools, obfuscation and privilege escalation tools are not covered. Needs Defender for Endpoint on the SQL servers.
Hunts for NetScaler Pitboss packet engine messages where the text after NSPPE carries shell syntax such as separators, command substitution or ${IFS}. Security vendors observed this pattern during exploitation of the NetScaler pre authentication command injection flaw patched in September 2026.
The query reads Syslog and CommonSecurityLog and decodes URL encoding. It checks only the text after NSPPE, so plain heartbeat lines without shell syntax do not match. The matching logic was checked on sample strings only, not on real appliance logs.
Triage: Check the source, the appliance version and whether it was patched at that time. A match on an unpatched appliance points to an exploitation attempt, not proof of success. Preserve logs and a snapshot before upgrading. Hunting query, not an alert.
Limitations: Needs NetScaler syslog forwarded to Sentinel. Empty results do not prove an appliance is clean. Attackers can remove traces and other techniques are not covered. Field names depend on the syslog format and connector. Bare separators and short words can match legitimate messages, so tune the regex after reviewing real results.
The query reads Syslog and CommonSecurityLog and decodes URL encoding. It checks only the text after NSPPE, so plain heartbeat lines without shell syntax do not match. The matching logic was checked on sample strings only, not on real appliance logs.
Triage: Check the source, the appliance version and whether it was patched at that time. A match on an unpatched appliance points to an exploitation attempt, not proof of success. Preserve logs and a snapshot before upgrading. Hunting query, not an alert.
Limitations: Needs NetScaler syslog forwarded to Sentinel. Empty results do not prove an appliance is clean. Attackers can remove traces and other techniques are not covered. Field names depend on the syslog format and connector. Bare separators and short words can match legitimate messages, so tune the regex after reviewing real results.
Lists accounts that still sign in successfully with Authenticated SMTP over the last 30 days. Microsoft plans to disable Basic auth for SMTP AUTH by default for existing tenants at the end of December 2026.
Rows come from SigninLogs and AADNonInteractiveUserSignInLogs, grouped per account with source IP count, apps and first and last seen.
Triage: Find the owner of each account, then move the sender to OAuth or a mail relay before the change. Inventory query, not an alert.
Limitations: Covers only sign-ins that reach the logs. Cross check with the Exchange admin center SMTP AUTH Clients Submission Report, which keeps 90 days.
Rows come from SigninLogs and AADNonInteractiveUserSignInLogs, grouped per account with source IP count, apps and first and last seen.
Triage: Find the owner of each account, then move the sender to OAuth or a mail relay before the change. Inventory query, not an alert.
Limitations: Covers only sign-ins that reach the logs. Cross check with the Exchange admin center SMTP AUTH Clients Submission Report, which keeps 90 days.
Detects the usage of command-line flags in AI coding assistant CLIs (such as Claude Code, Amazon Q CLI, and others) that intentionally skip security permissions, bypass approvals, or disable sandbox protections. The rule identifies potential developer activity that may inadvertently reduce the security posture of the development environment.
This rule monitors Entra ID Sign-in logs for authentication events flagged by risk detections related to anonymizing infrastructure, such as VPNs, TOR exit nodes, or proxies. It identifies successful logins and aggregate sign-in volume from these IP addresses, flagging successful logins as critical due to the potential for valid account abuse through multi-hop proxy chains.
Hunts for NetScaler Pitboss packet engine messages where the text after NSPPE carries shell syntax such as separators, command substitution or ${IFS}. Security vendors observed this pattern during exploitation of the NetScaler pre authentication command injection flaw patched in September 2026.
The query reads Syslog and CommonSecurityLog and decodes URL encoding. It checks only the text after NSPPE, so plain heartbeat lines without shell syntax do not match. The matching logic was checked on sample strings only, not on real appliance logs.
Triage: Check the source, the appliance version and whether it was patched at that time. A match on an unpatched appliance points to an exploitation attempt, not proof of success. Preserve logs and a snapshot before upgrading. Hunting query, not an alert.
Limitations: Needs NetScaler syslog forwarded to Sentinel. Empty results do not prove an appliance is clean. Attackers can remove traces and other techniques are not covered. Field names depend on the syslog format and connector. Bare separators and short words can match legitimate messages, so tune the regex after reviewing real results.
The query reads Syslog and CommonSecurityLog and decodes URL encoding. It checks only the text after NSPPE, so plain heartbeat lines without shell syntax do not match. The matching logic was checked on sample strings only, not on real appliance logs.
Triage: Check the source, the appliance version and whether it was patched at that time. A match on an unpatched appliance points to an exploitation attempt, not proof of success. Preserve logs and a snapshot before upgrading. Hunting query, not an alert.
Limitations: Needs NetScaler syslog forwarded to Sentinel. Empty results do not prove an appliance is clean. Attackers can remove traces and other techniques are not covered. Field names depend on the syslog format and connector. Bare separators and short words can match legitimate messages, so tune the regex after reviewing real results.
Hunts for NetScaler Pitboss packet engine messages where the text after NSPPE carries shell syntax such as separators, command substitution or ${IFS}. Security vendors observed this pattern during exploitation of the NetScaler pre authentication command injection flaw patched in September 2026.
The query reads Syslog and CommonSecurityLog and decodes URL encoding. It checks only the text after NSPPE, so plain heartbeat lines without shell syntax do not match. The matching logic was checked on sample strings only, not on real appliance logs.
Triage: Check the source, the appliance version and whether it was patched at that time. A match on an unpatched appliance points to an exploitation attempt, not proof of success. Preserve logs and a snapshot before upgrading. Hunting query, not an alert.
Limitations: Needs NetScaler syslog forwarded to Sentinel. Empty results do not prove an appliance is clean. Attackers can remove traces and other techniques are not covered. Field names depend on the syslog format and connector. Bare separators and short words can match legitimate messages, so tune the regex after reviewing real results.
The query reads Syslog and CommonSecurityLog and decodes URL encoding. It checks only the text after NSPPE, so plain heartbeat lines without shell syntax do not match. The matching logic was checked on sample strings only, not on real appliance logs.
Triage: Check the source, the appliance version and whether it was patched at that time. A match on an unpatched appliance points to an exploitation attempt, not proof of success. Preserve logs and a snapshot before upgrading. Hunting query, not an alert.
Limitations: Needs NetScaler syslog forwarded to Sentinel. Empty results do not prove an appliance is clean. Attackers can remove traces and other techniques are not covered. Field names depend on the syslog format and connector. Bare separators and short words can match legitimate messages, so tune the regex after reviewing real results.
Hunts for sqlservr.exe spawning command shells or system utilities, a pattern consistent with xp_cmdshell abuse. It also flags later steps from a public intrusion write-up: certutil decoding, SAM, SYSTEM or SECURITY hive saves and local account or group changes.
Results are grouped per device and day and ranked by stage count. Rows can also appear without a SQL parent when two later stages occur on the same device and day.
Triage: Some jobs use xp_cmdshell legitimately. Review the command line and the account. Hunting query, not an alert.
Limitations: Activity inside the SQL process with no child process is not visible. Renamed tools, obfuscation and privilege escalation tools are not covered. Needs Defender for Endpoint on the SQL servers.
Results are grouped per device and day and ranked by stage count. Rows can also appear without a SQL parent when two later stages occur on the same device and day.
Triage: Some jobs use xp_cmdshell legitimately. Review the command line and the account. Hunting query, not an alert.
Limitations: Activity inside the SQL process with no child process is not visible. Renamed tools, obfuscation and privilege escalation tools are not covered. Needs Defender for Endpoint on the SQL servers.
Page 3 of 8