Rule Library

Sigma Rules

18 rules found for "Alejandro Ortuno"

3,707Total
3,116Detection
451Emerging
137Hunting
Detectionlowtest

Linux Network Service Scanning - Auditd

Detects enumeration of local or remote network services.

Linuxauditd
TA0007 · DiscoveryT1046 · Network Service Discovery
Alejandro Ortuno+1Wed Oct 21linux
Detectionmediumtest

Disabling Security Tools - Builtin

Detects disabling security tools

Linuxsyslog
TA0005 · Defense EvasionT1562.004 · Disable or Modify System Firewall
Ömer Günal+2Wed Jun 17linux
Detectionlowtest

Local System Accounts Discovery - Linux

Detects enumeration of local system accounts. This information can help adversaries determine which local accounts exist on a system to aid in follow-on behavior.

LinuxProcess Creation
TA0007 · DiscoveryT1087.001 · Local Account
Alejandro Ortuno+2Thu Oct 08linux
Detectionlowtest

Local Groups Discovery - Linux

Detects enumeration of local system groups. Adversaries may attempt to find local system groups and permission settings

LinuxProcess Creation
TA0007 · DiscoveryT1069.001 · Local Groups
Ömer Günal+2Sun Oct 11linux
Detectionlowtest

Linux Remote System Discovery

Detects the enumeration of other remote systems.

LinuxProcess Creation
TA0007 · DiscoveryT1018 · Remote System Discovery
Alejandro Ortuno+1Thu Oct 22linux
Detectionmediumtest

Scheduled Cron Task/Job - Linux

Detects abuse of the cron utility to perform task scheduling for initial or recurring execution of malicious code. Detection will focus on crontab jobs uploaded from the tmp folder.

LinuxProcess Creation
TA0002 · ExecutionTA0003 · PersistenceTA0004 · Privilege EscalationT1053.003 · Cron
Alejandro Ortuno+1Tue Oct 06linux
Detectionmediumtest

Disabling Security Tools

Detects disabling security tools

LinuxProcess Creation
TA0005 · Defense EvasionT1562.004 · Disable or Modify System Firewall
Ömer Günal+2Wed Jun 17linux
Detectionlowtest

Linux Network Service Scanning Tools Execution

Detects execution of network scanning and reconnaisance tools. These tools can be used for the enumeration of local or remote network services for example.

LinuxProcess Creation
TA0007 · DiscoveryT1046 · Network Service Discovery
Alejandro Ortuno+2Wed Oct 21linux
Detectionmediumtest

MacOS Emond Launch Daemon

Detects additions to the Emond Launch Daemon that adversaries may use to gain persistence and elevate privileges.

macOSFile Event
TA0003 · PersistenceTA0004 · Privilege Escalationattack.t1546.014
Alejandro Ortuno+1Fri Oct 23macos
Detectionlowtest

Startup Item File Created - MacOS

Detects the creation of a startup item plist file, that automatically get executed at boot initialization to establish persistence. Adversaries may use startup items automatically executed at boot initialization to establish persistence. Startup items execute during the final phase of the boot process and contain shell scripts or other executable files along with configuration information used by the system to determine the execution order for all startup items.

macOSFile Event
TA0003 · PersistenceTA0004 · Privilege EscalationT1037.005 · Startup Items
Alejandro Ortuno+1Wed Oct 14macos
Detectionmediumtest

MacOS Scripting Interpreter AppleScript

Detects execution of AppleScript of the macOS scripting language AppleScript.

macOSProcess Creation
TA0002 · ExecutionT1059.002 · AppleScript
Alejandro Ortuno+1Wed Oct 21macos
Detectionlowtest

Creation Of A Local User Account

Detects the creation of a new user account. Such accounts may be used for persistence that do not require persistent remote access tools to be deployed on the system.

macOSProcess Creation
T1136.001 · Local AccountTA0003 · Persistence
Alejandro Ortuno+1Tue Oct 06macos
Detectionlowtest

Local System Accounts Discovery - MacOs

Detects enumeration of local systeam accounts on MacOS

macOSProcess Creation
TA0007 · DiscoveryT1087.001 · Local Account
Alejandro Ortuno+1Thu Oct 08macos
Detectioninformationaltest

Local Groups Discovery - MacOs

Detects enumeration of local system groups

macOSProcess Creation
TA0007 · DiscoveryT1069.001 · Local Groups
Ömer Günal+2Sun Oct 11macos
Detectionlowtest

MacOS Network Service Scanning

Detects enumeration of local or remote network services.

macOSProcess Creation
TA0007 · DiscoveryT1046 · Network Service Discovery
Alejandro Ortuno+1Wed Oct 21macos
Detectioninformationaltest

Network Sniffing - MacOs

Detects the usage of tooling to sniff network traffic. An adversary may place a network interface into promiscuous mode to passively access data in transit over the network, or use span ports to capture a larger amount of data.

macOSProcess Creation
TA0007 · DiscoveryTA0006 · Credential AccessT1040 · Network Sniffing
Alejandro Ortuno+1Wed Oct 14macos
Detectioninformationaltest

Macos Remote System Discovery

Detects the enumeration of other remote systems.

macOSProcess Creation
TA0007 · DiscoveryT1018 · Remote System Discovery
Alejandro Ortuno+1Thu Oct 22macos
Detectionmediumtest

Scheduled Cron Task/Job - MacOs

Detects abuse of the cron utility to perform task scheduling for initial or recurring execution of malicious code. Detection will focus on crontab jobs uploaded from the tmp folder.

macOSProcess Creation
TA0002 · ExecutionTA0003 · PersistenceTA0004 · Privilege EscalationT1053.003 · Cron
Alejandro Ortuno+1Tue Oct 06macos