To apply this detection rule, you can convert it to your SIEM language. It is also recommended to update BIG-IP to the latest version. More information available here. You can also detect CMSTP.exe with INF files infected with malicious commands with our previous free Splunk detection rule. Secure Your Organization’s Mind with Securemind.se
An adversary may attempt to block indicators or events typically captured by sensors from being gathered and analyzed. This could include maliciously redirecting or even disabling host-based sensors, such as Event Tracing for Windows (ETW), by tampering settings that control the collection and flow of event telemetry. These settings may be stored on the system in configuration files…
Adversaries may implement hidden windows to conceal malicious activity from the plain sight of users. In some cases, windows that would typically be displayed when an application carries out an operation can be hidden. This may be utilized by system administrators to avoid disrupting user work environments when carrying out administrative tasks. Adversaries may abuse…
To prevent normal users from accidentally changing special files on a system, most operating systems have the concept of a ‘hidden’ file. These files don’t show up when a user browses the file system with a GUI or when using normal commands on the command line. Users must explicitly ask to show the hidden files…
As with any security assessment, risk is what moves an organization to act. Operational Impacts are a Red Team’s tool to demonstrate risks. This is one of the most effective methods of show risk to an organization’s senior leadership. Operational Impacts are actions or effects performed against a target designed to demonstrate physical, informational and…
Malware, tools, or other non-native files dropped or created on a system by an adversary may leave traces behind as to what was done within a network and how it was executed. Adversaries may remove these files over the course of an intrusion to keep their footprint low or remove them at the end as…
To emulate an adversary or their TTPs, planning is key. Without planning, modeling a sophisticated actor can become extremely difficult, time-consuming, and costly. We have too often seen requests to emulate a highly sophisticated actor such as ‘APT group X’ or a ‘Nation State’ with little to no time or budget. Sophisticated actors have time,…
File and directory permissions are commonly managed by discretionary access control lists (DACLs) specified by the file or directory owner. File and directory DACL implementations may vary by platform, but generally they are explicitly designated so that users/groups can perform actions ie.read, write, execute, etc. Adversaries may modify file or directory permissions/attributes to evade intended…
Threat Emulation is the process of mimicking the TTFs of a specific threat. Threats of any variety can be emulated Zero-day or custom attacks Script kiddie to advanced adversary Emulation of specific threat (Botnets, DDOS, Ransomware, Specific Malware, APT, etc.) Scenario driven assessments are typically driven by emulation of some level of threat. This may…
Adversaries may use Obfuscated Files or Information to hide artifacts of an intrusion from the analysis. They may require separate mechanisms to decode or deobfuscate that information depending on how they intend to use it. Methods for doing that include built-in functionality of malware, Scripting, PowerShell, or by using utilities present on the system. One…