Safe Community Analytics model 7.5.2 has been launched, providing thrilling new options such because the Community Visibility Module (NVM) and Zeek detections. We’re increasing our detections throughout present and new sources, and our detections engine now ingests NVM telemetry and Zeek logs, introducing 9 new alerts prominently displayed in Analytics. These alerts are additionally aligned with the widely known MITRE ATT&CK framework.
By integrating a extra various vary of telemetry sources, Safe Community Analytics considerably enhances community visibility and offers deeper insights into community actions. This launch and its detections characterize a sophisticated strategy to broadening detection sources and capabilities. Customers using the Information Retailer structure with Analytics enabled can improve to model 7.5.2 to right away entry these new capabilities.
The Safe Community Analytics model 7.5.2 software program updates will be downloaded from Cisco Software program Central.
New Community Visibility Module (NVM) Alerts
Community Visibility Module is a part of Cisco Safe Consumer that data and reviews on community exercise from an endpoint gadget and ties in endpoint fashion data with these community particulars. If you’re used to amassing NetFlow or IPFIX in your surroundings, the Community Visibility Module will present the identical particulars a few community connection, however can even embrace issues like hostname, course of identify, consumer data, working system, interface particulars, and extra. This helps pace up investigations and offers further context about who and what host took an motion on the community. The detections engine processes the Community Visibility Module telemetry and alerts on 4 new detections.
You possibly can take a look at the Community Visibility Module Configuration Information.
Community Visibility Module (NVM) Alert Names and Descriptions
Potential Gamaredon C2 Callout
A command line utility was used to contact a URL related to the command-and-control servers of a menace actor generally known as Gamaredon. Gamaredon (also called Armageddon, Primitive Bear, and ACTINIUM) is an APT energetic since 2013 recognized to leverage spearphishing to contaminate victims with customized malware.
Suspicious Curl Habits
The system utility curl exhibited suspicious conduct that could be indicative of exploitation of CVE-2023-38545.
Suspicious MSHTA Exercise
The built-in Home windows software MSHTA.exe was executed interactively by a non-system consumer and utilized to make a community connection. Whereas sometimes reputable when run robotically by the system, it’s also recognized to be utilized by menace actors together with Superior Persistent Threats (APTs).
Suspicious Course of Path
A course of was executed on an endpoint from a listing that ought to not have executables.
New Zeek Alerts
Zeek is a well-liked, free, and open-source community site visitors evaluation instrument. It screens and inspects site visitors and generates log recordsdata of witnessed exercise. These Zeek log recordsdata will be despatched to Safe Community Analytics as a telemetry supply. The detections engine reads the Zeek logs and alerts on 5 new detections.
Take a look at the Zeek Configuration Information.
Zeek Alert Names and Descriptions
DNS Site visitors to Tor Proxy
A tool despatched DNS question site visitors for a recognized Tor proxy. This may occasionally point out that an software is making ready to determine a connection through a Tor proxy. It might be a botnet trying to contact different gadgets for command-and-control. Adversaries are recognized to leverage it for command-and-control and protection evasion. Even when utilized by a reputable consumer, it may possibly circumvent some safety controls.
PetitPotam Assault Through EFS RPC Calls
A tool despatched a Distant Process Name (RPC) utilizing the Encrypting File System Distant Protocol (EFSRPC) Protocol library. The PetitPotam assault is understood to be associated to one of these RPC site visitors. PetitPotam is a instrument that may exploit this library. Additionally it is generally known as an NTLM relay assault. Since most organizations don’t use this library in any respect, or restrict the utilization of it, any use is rare sufficient to point a doable PetitPotam assault.
Potential Impacket SecretDump Exercise
A tool is trying a secrets and techniques dump utilizing an impression instrument akin to secretdump.py, which permits dumping credentials from an Energetic Listing (AD) server. That is additionally known as a secrets-dump HKTL.
Distant Process Creation through ATSVC Named Pipe
A tool is trying to create a distant job utilizing ATSVC named pipes, which might be a malicious try to make use of at.exe for performing job scheduling for preliminary or recurring execution of malicious code. The at.exe utility has been deprecated in present variations of Home windows in favor of schticks.
Suspicious PsExec Execution
A tool aside from a Home windows Sysinternal gadget is utilizing psexec with a renamed service identify, which might point out a menace actor trying to carry out a distant execution.
Conclusion
Customers of the Safe Community Analytics Information Retailer with Analytics will need to improve their occasion to model 7.5.2 to realize entry to 9 new detections – 4 based mostly on Community Visibility Module telemetry and 5 based mostly on Zeek logs. These new detections are instantly accessible in Analytics. Configure the sources to export and increase your detection protection at present.
References
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