Splunk Security
@SplunkSecurity35 followers31,507 downloads1,688 copies11 likes90,248 views
2,515 detections
Filters
Last updated
All Time
Detection languages
2,515
Categories
839
535
265
240
208
Platforms
1,613
264
203
142
100
Products / Services
1,234
902
796
217
212
MITRE Techniques
935
667
517
499
307
CVEs
18
13
12
12
9
The analytic detects a registry modification that disables Event Tracing for Windows (ETW) for the .NET Framework. This is achieved by setting the 'ETWEnabled' registry value to '0x00000000' under the '.NETFramework' path. Disabling ETW can be used by attackers to evade Endpoint Detection and Response (EDR) tools and hide their activities from audit logs, potentially leading to undetected compromise and persistent access.
The analytic detects the execution of `powershell.exe` running the `Get-ADUserResultantPasswordPolicy` cmdlet, which is used to obtain the password policy in a Windows domain. This activity indicates potential enumeration of domain policies, a common tactic for situational awareness and Active Directory discovery by adversaries. If confirmed malicious, this could allow attackers to understand password policies, aiding in further attacks such as password spraying or brute force attempts.
The following analytic detects the execution of `powershell.exe` running the `Get-DomainPolicy` cmdlet, which is used to retrieve password policies in a Windows domain. This activity is significant as it indicates potential reconnaissance efforts by adversaries to gather domain policy information, which is crucial for planning further attacks. If confirmed malicious, this could lead to unauthorized access to sensitive domain configurations, aiding in privilege escalation and lateral movement within the network.
The analytic detects the use of the `Get-WMIObject Win32_Group` command executed via PowerShell or cmd.exe to enumerate local groups on an endpoint. This activity is often a precursor to privilege escalation or lateral movement, as attackers map out group memberships to identify potential exploitation paths or unauthorized access to sensitive resources.
The analytic detects the execution of `powershell.exe` with command-line arguments invoking the `GetCurrent` method of the WindowsIdentity .NET class. This activity is significant as adversaries may use this method to identify the logged-in user on a compromised endpoint, aiding in situational awareness and Active Directory discovery. If confirmed malicious, this could allow attackers to gain insights into user context, potentially facilitating further exploitation and lateral movement within the network.
The following analytic detects the execution of `powershell.exe` with command-line arguments that utilize the `Get-WmiObject` cmdlet to discover remote systems, specifically targeting the `DS_Computer` parameter. This detection leverages data from Endpoint Detection and Response (EDR) agents, focusing on process names and command-line executions. This activity is significant as it indicates potential reconnaissance efforts by adversaries to enumerate domain computers and gather situational awareness within Active Directory. If confirmed malicious, this behavior could allow attackers to map the network, identify critical systems, and plan further attacks, potentially leading to unauthorized access and data exfiltration.
The analytic detects the execution of a Unix shell command designed to wipe root directories on a Linux host. It specifically looks for the 'rm' command with force recursive deletion ('-rf') and the '--no-preserve-root' option. This activity indicates potential data destruction attempts, often associated with malware like Awfulshred. If confirmed malicious, this behavior could lead to severe data loss, system instability, and compromised integrity of the affected Linux host. Immediate investigation and response are crucial to mitigate potential damage.
This analytic detects the restarting or re-enabling of services on Linux systems using the `systemctl` or `service` commands. It leverages data from Linux Auditd, focusing on process and command-line execution logs. This activity is significant as adversaries may use it to maintain persistence or execute unauthorized actions. If confirmed malicious, this behavior could lead to repeated execution of malicious payloads, unauthorized access, or data destruction. Security analysts should investigate these events to mitigate risks and prevent further compromise.
This analytic detects suspicious discovery of virtual disk files and directories on Linux systems. It specifically looks for command-line executions using `find` or `grep` that target common virtual disk file extensions such as `.vhd`, `.vhdx`, and `.vmdk`. This activity may indicate an attacker's attempt to locate and access virtualized storage environments, which could contain sensitive data or critical system configurations. Unauthorized discovery attempts could signify preparatory actions for data exfiltration or further compromise, enabling security teams to identify potential reconnaissance activities and respond promptly.
This analytic detects the execution of BusyBox with sudo privileges, which can lead to privilege escalation on Linux systems. It leverages data from Endpoint Detection and Response (EDR) agents, focusing on process creation events where BusyBox is executed with both 'sh' and 'sudo' commands. This activity is significant because it indicates a user may be attempting to gain root access, bypassing standard security controls. If confirmed malicious, this could allow an attacker to execute arbitrary commands as root, leading to full system compromise and potential persistence within the environment.
Page 234 of 252