Trellix Insights: The link between SUPERNOVA and the SPIRAL threat group

Technical Articles ID: KB94407
Last Modified: 2022-09-06 19:12:20 Etc/GMT

Environment

IMPORTANT: This Knowledge Base article discusses a specific threat that is being automatically tracked by Trellix Insights technology. The content is intended for use by Trellix Insights users, but is provided for general knowledge to all customers. Contact us for more information about Trellix Insights.

Summary

Description of Campaign
The Spiral threat group exploited a vulnerability in the SolarWinds Orion API. The flaw is classified under CVE-2020-10148 and is due to an authentication bypass defect in the application. The actor exploited the flaw and used PowerShell to deploy the Supernova .NET web shell. The malicious software is a weaponized version of a legitimate DLL file used by the SolarWinds Orion software. The malware allowed Spiral to perform reconnaissance and exfiltrate stolen credentials and sensitive information to command and control servers.

Our Threat Research team gathers and analyzes information from multiple open and closed sources before disseminating intelligence reports. This campaign was researched by Cisco and shared publicly.

How to use this article:

If a Threat Hunting table has been created, use the rules contained to search for malware related to this campaign.
Review the product detection table and confirm that your environment is at least on the specified content version.
To download the latest content versions, go to the Security Updates page.
Scroll down and review the "Product Countermeasures" section of this article. Consider implementing them if they are not already in place.
Review KB91836 - Countermeasures for entry vector threats.
Review KB87843 - Dynamic Application Containment rules and best practices.
Review KB82925 - Identify what rule corresponds to an Adaptive Threat Protection and Threat Intelligence Exchange event.

Campaign IOC

Type	Value
SHA256	C15ABAF51E78CA56C0376522D699C978217BF041A3BD3C71D09193EFA5717C71
IP-DST	24.59.231.58
IP-DST	24.59.231.62
IP-DST	24.59.231.60
IP-DST	24.59.231.61
IP-DST	24.59.231.59
IP-DST	23.236.125.20
IP-DST	76.237.140.245
IP-DST	117.21.187.144

Minimum Content Versions:

Content Type	Version
V2 DAT (VirusScan Enterprise)	9838
V3 DAT (Endpoint Security)	4290

Detection Summary

IOC	Scanner	Detection
C15ABAF51E78CA56C0376522D699C978217BF041A3BD3C71D09193EFA5717C71	AVEngine V2	Trojan-Sunburst!56CEB6D0011D
	AVEngine V3	Trojan-Sunburst!56CEB6D0011D
	JTI (ATP Rules)	-
	RP Static	-
	RP Dynamic	-

Minimum set of Manual Rules to improve protection to block this campaign
IMPORTANT: Always follow best practices when you enable new rules and signatures.

When you implement new rules or signatures, always set them to Report mode first and check the alerts generated. Resolve any issues that arise and then set the rules to Block. This step mitigates against triggering false positives and allows you to refine your configuration.

For more information, see KB87843 - List of and best practices for Endpoint Security Dynamic Application Containment rules.

Endpoint Security - Advanced Threat Protection:

Rule ID: 4 Use GTI file reputation to identify trusted or malicious files

Aggressive set of Manual Rules to improve protection to block this campaign
IMPORTANT: Always follow best practices when you enable new rules and signatures.

When you implement new rules or signatures, always set them to Report mode first and check the alerts generated. Resolve any issues that arise and then set the rules to Block. This step mitigates against triggering false positives and allows you to refine your configuration.

For more information, see KB87843 - List of and best practices for Endpoint Security Dynamic Application Containment rules.

Endpoint Security - Dynamic Application Containment:

Modifying the Services registry location

Host Intrusion Prevention:

Rule ID: 6011 Generic Application Invocation Protection
Rule ID: 6010 Generic Application Hooking Protection
Rule ID: 1148 CMD Tool Access by a Network Aware Application

Affected Products

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Knowledge Center

Trellix Insights: The link between SUPERNOVA and the SPIRAL threat group

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Trellix Insights: The link between SUPERNOVA and the SPIRAL threat group

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