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Severity
High
Analysis Summary
AsyncRAT is an open-source tool designed for remote monitoring via encrypted connections. However, it could be utilized by threat actors as it provides keylogging, remote access, and other functionality that could damage a victim’s computer or system. This tool can be used to send malicious files to the system which once executed can be a source to other malicious software. These can also be used to transfer malicious programs into USB drives and can infect other systems.
Numerous malware campaigns and threat actors have utilized AsyncRAT in various recent attacks. More recently, a social engineering campaign that targeted Thailand pass (an online travel agency) consumers were observed. Additionally, the Follina Outbreak in Australia spread AsyncRAT as a malicious payload.
AsyncRAT can be delivered through a number of techniques, including spear-phishing, malicious advertising, exploit kits, and others.
Impact
- Unauthorized Access
- Information Theft
Indicators of Compromise
MD5
e761328eddd9f6ae6c0fed755db939c0
dce9498e1f4c442af9ba6eddea932c9e
SHA-256
4bb3d2ce54ab7821c3a304aa8daa822605f9a0fd1db49f061d53ba9c7aed0406
aea1e7906f7c4c8736efd398ccb819a6739058ee2e0ee87cac29ac72d764ec29
SHA-1
7fab32ec186cf7badde919181066d85bbe1c6556
a17bae573343d7295e8109df87d3098781e21d7b
Remediation
- Block all threat indicators at your respective controls.
- Search for Indicators of compromise (IOCs) in your environment utilizing your respective security controls
- Do not download document ?les attached in emails from unknown sources and strictly refrain from enabling macros when the source isn’t reliable.
- Enable antivirus and anti-malware software and update signature definitions in a timely manner. Using multi-layered protection is necessary to secure vulnerable assets
- Patch and upgrade any platforms and software timely and make it into a standard security policy.
- Enforced Access Management Policies.
- Along with network and system hardening, code hardening should be implemented within the organization so that their websites and software are secure. Use testing tools to detect any vulnerabilities in the deployed codes.