Trellix Insights: RAT Campaign Spoofing Philippine Government Targets Multiple Sectors
Technical Articles ID:
KB95168
Last Modified: 2022-09-06 05:42:40 Etc/GMT
Last Modified: 2022-09-06 05:42:40 Etc/GMT
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Trellix Insights: RAT Campaign Spoofing Philippine Government Targets Multiple Sectors
Technical Articles ID:
KB95168
Last Modified: 2022-09-06 05:42:40 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.
SummaryResearchers identified a series of campaigns distributing Remcos and NanoCore RATs masquerading as the Kingdom of Saudi Arabia embassy in Manila and the Philippine Overseas Employment Administration (POEA) in mid-2021. Upon further investigation, Proofpoint identified additional, separate campaigns, distributing the same malware masquerading as the Philippine Department of Health and Bureau of Customs. It's likely that the threat actor is attempting to gain remote access to target computers, which can be used for information gathering or to install follow-on malware or engage in business email compromise (BEC) activity. Proofpoint separated campaigns into two distinct threat activity clusters. In all cases, message lures were in English. They contained multiple threat distribution mechanisms including the following: OneDrive URLs linking to RAR files with embedded UUE files. PDF email attachments with an embedded OneDrive link or other malicious URLs leading to compressed executables (.iso files) that download and run malware. Compressed MS Excel documents containing macros which, if enabled, download malware. Remcos is a commodity remote access tool available for purchase online. NanoCore is also a commodity malware and is written in .NET by "Aeonhack." The code is obfuscated with Our Threat Research team gathers and analyzes information from multiple open and closed sources before disseminating intelligence reports. This campaign was researched by Proofpoint and shared publicly. How to use this article:
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: 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: Rule ID: 1148 CMD Tool Access by a Network Aware Application Rule ID: 6010 Generic Application Hooking Protection Affected Products |
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