MVISION Insights: Transparent Tribe targeting India Government with bespoke Malware
Technical Articles ID:
KB95607
Last Modified: 5/5/2022
Last Modified: 5/5/2022
Environment
IMPORTANT: This Knowledge Base article discusses a specific threat that is being automatically tracked by MVISION Insights technology. The content is intended for use by MVISION Insights users, but is provided for general knowledge to all customers. Contact us for more information about MVISION Insights.
Summary
Description of Campaign
The Transparent Tribe threat group, also known as APT36, targeted government officials and military entities in India with new bespoke malware along with variants from the CrimsonRAT malware family. The actor used fake domains mimicking websites to appear legitimate to end users, a new Python-based stager, and a .NET-based implant to carry out the infection process. The malware was used to gather and exfiltrate sensitive information from infected systems.
Our ATR Team gathers and analyzes information from multiple open and closed sources before disseminating intelligence reports. This campaign was researched by Cisco Systems and shared publicly.
How to use this article:Threat Hunting
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
Minimum Content Versions
Detection Summary
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:
Host Intrusion Prevention:
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.
VirusScan Enterprise - Access Protection Rules:
Host Intrusion Prevention:
Endpoint Security - Access Protection Rules:
The Transparent Tribe threat group, also known as APT36, targeted government officials and military entities in India with new bespoke malware along with variants from the CrimsonRAT malware family. The actor used fake domains mimicking websites to appear legitimate to end users, a new Python-based stager, and a .NET-based implant to carry out the infection process. The malware was used to gather and exfiltrate sensitive information from infected systems.
Our ATR Team gathers and analyzes information from multiple open and closed sources before disseminating intelligence reports. This campaign was researched by Cisco Systems 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.
meta: author = "ditekSHen" description = "Detects CrimsonRAT" strings: $s1 = "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run|" fullword wide $s2 = "system volume information|" fullword wide $s3 = "program files (x86)|" fullword wide $s4 = "program files|" fullword wide $s5 = " $s7 = "see_folders" ascii $s8 = "see_files" ascii $s9 = "see_scren" ascii $s10 = "see_recording" ascii $s11 = "see_responce" ascii $s12 = "pull_data" ascii $s13 = "do_process" ascii $s14 = "do_updated" ascii $s15 = "IPSConfig" fullword ascii $s16 = "#Runing|ver#" wide $s17 = "|fileslog=" wide condition: uint16(0) == 0x5a4d and 6 of them } |
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.
Minimum Content Versions
Detection Summary
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
Rule ID: 239 Identify suspicious command parameter execution
Rule ID: 239 Identify suspicious command parameter execution
Host Intrusion Prevention:
Rule ID: 6081 PowerShell Command Restriction - NoProfile
Rule ID: 6113 T1055 - Fileless Threat: Reflective Self Injection
Rule ID: 6083 PowerShell Command Restriction - NonInteractive
Rule ID: 412 Double File Extension Execution
Rule ID: 6070 Hidden PowerShell Detected
Rule ID: 6113 T1055 - Fileless Threat: Reflective Self Injection
Rule ID: 6083 PowerShell Command Restriction - NonInteractive
Rule ID: 412 Double File Extension Execution
Rule ID: 6070 Hidden PowerShell Detected
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.
VirusScan Enterprise - Access Protection Rules:
Prevent programs registering as a service
Prevent creation of new executable files in the Windows folder
Prevent creation of new executable files in the Windows folder
Host Intrusion Prevention:
Rule ID: 1148 CMD Tool Access by a Network Aware Application
Rule ID: 1020 Windows Agent Shielding - File Access
Rule ID: 6010 Generic Application Hooking Protection
Rule ID: 6011 Generic Application Invocation Protection
Rule ID: 1020 Windows Agent Shielding - File Access
Rule ID: 6010 Generic Application Hooking Protection
Rule ID: 6011 Generic Application Invocation Protection
Endpoint Security - Access Protection Rules:
Registering of programs to autorun
