Description of Campaign
Hive ransomware has been actively compromising targets since mid-2021. The operators of the Hive ransomware have operated on a ransomware-as-a-service business model which is available to affiliates as a fee-based service. Hive has taken advantage of multiple vulnerabilities as an entry point to targets. Once access is gained, different stages of data discovery are performed using commodity malware, such as Mimikatz for credential theft and network, and IP scanners for system and connectivity discovery, before delivering the final payload, which encrypts infected systems and ransoms them for payment.

Our ATR Team gathers and analyzes information from multiple open and closed sources before disseminating intelligence reports. This campaign was researched by Veronis and shared publicly.

How to use this article:

1. If a Threat Hunting table has been created, use the rules contained to search for malware related to this campaign. 
2. 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.
3. Scroll down and review the "Product Countermeasures" section of this article. Consider implementing them if they are not already in place.
4. Review KB91836 - Countermeasures for entry vector threats.
5. Review KB87843 - Dynamic Application Containment rules and best practices.
6. Review KB82925 - Identify what rule corresponds to an Adaptive Threat Protection and Threat Intelligence Exchange event.

This Knowledge Base article discusses a specific threat that's being tracked. The list of IOCs will change over time; check MVISION Insights for the latest IOCs.
 
Campaign IOC

Type	Value
SHA256	E81A8F8AD804C4D83869D7806A303FF04F31CCE376C5DF8AADA2E9DB2C1EEB98
IP-DST	139.60.161.228
IP-DST	139.60.161.56
IP-DST	91.208.52.149
IP-DST	185.70.184.8

Minimum Content Versions

Content Type	Version
V2 DAT (VirusScan Enterprise)	7476
V3 DAT (Endpoint Security)	3055

  
Detection Summary                               

IOC	Scanner	Detection
E81A8F8AD804C4D83869D7806A303FF04F31CCE376C5DF8AADA2E9DB2C1EEB98	AVEngine V2	HTool-Mimikatz
	AVEngine V3	HTool-Mimikatz
	JTI (ATP Rules)	JTI/Suspect.196612!6c9ad4e67032
	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:
Endpoint Security - Access Protection Rules:
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.

Host Intrusion Prevention: