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- Volt Typhoon actors are seeking to pre-position themselves—using living off the land (LOTL) techniques—on IT networks for disruptive or destructive cyber activity against U.S. critical infrastructure in the event of a major crisis or conflict with the United States.
www.cisa.gov › news-events › alertsCISA and Partners Release Advisory on PRC-sponsored Volt ...
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Apr 19, 2024 · The comments were in relation to a Chinese government-linked hacking campaign dubbed Volt Typhoon. The campaign was disclosed by the U.S. and its key allies in May 2023, when analysts...
- Initial Access
- Post-Compromise Activity
- Mitigation and Protection Guidance
- Detection Details and Hunting Queries
- Indicators of Compromise
Volt Typhoon achieves initial access to targeted organizations through internet-facing Fortinet FortiGuard devices. Microsoft continues to investigate Volt Typhoon’s methods for gaining access to these devices. The threat actor attempts to leverage any privileges afforded by the Fortinet device, extracts credentials to an Active Directory account u...
Once Volt Typhoon gains access to a target environment, they begin conducting hands-on-keyboard activity via the command line. Some of these commands appear to be exploratory or experimental, as the operators adjust and repeat them multiple times. Volt Typhoon rarely uses malware in their post-compromise activity. Instead, they rely on living-off-t...
Mitigating risk from adversaries like Volt Typhoon that rely on valid accounts and living-off-the-land binaries (LOLBins) is particularly challenging. Detecting activity that uses normal sign-in channels and system binaries requires behavioral monitoring. Remediation requires closing or changing credentials for compromised accounts. Suspected compr...
Microsoft Defender Antivirus
Microsoft Defender Antivirus detects attempted post-compromise activity. Note, however, that these alerts can also be triggered by threat activity unrelated to Volt Typhoon. Turn on cloud-delivered protection to cover rapidly evolving attacker tools and techniques. Cloud-based machine learning protections block most new and unknown threats. 1. Behavior:Win32/SuspNtdsUtilUsage.A 2. Behavior:Win32/SuspPowershellExec.E 3. Behavior:Win32/SuspRemoteCmdCommandParent.A 4. Behavior:Win32/UNCFilePathO...
Microsoft Defender for Endpoint
Microsoft Defender for Endpoint alerts with the following titles can indicate possible presence of Volt Typhoon activity. 1. Volt Typhoon threat actor detected The following alerts may also be associated with Volt Typhoon activity. Note, however, that these alerts can also be triggered by threat activity unrelated to Volt Typhoon. 1. A machine was configured to forward traffic to a non-local address 2. Ntdsutil collecting Active Directory information 3. Password hashes dumped from LSASS memor...
The below list provides IOCs observed during our investigation. We encourage our customers to investigate these indicators in their environments and implement detections and protection to identify past related activity and prevent future attacks against their systems. Volt Typhoon custom FRP executable (SHA-256): 1. baeffeb5fdef2f42a752c65c2d2a52e8...
Feb 7, 2024 · Volt Typhoon actors are seeking to pre-position themselves—using living off the land (LOTL) techniques—on IT networks for disruptive or destructive cyber activity against U.S. critical infrastructure in the event of a major crisis or conflict with the United States.
May 25, 2023 · Chinese state-sponsored threat actor Volt Typhoon has been observed using stealthy techniques to target US critical infrastructure, conduct espionage, and dwell in compromised environments. Explore Volt Typhoon's cyberattacks on US critical infrastructure using living-off-the-land techniques.
May 8, 2024 · China's Volt Typhoon campaign is metastasizing. US diplomats decry penetrations of critical infrastructure that show a new "type of threat and intent.” David DiMolfetta....
Mar 29, 2024 · Volt Typhoon uses malicious software that penetrates internet-connected systems by exploiting vulnerabilities such as weak administrator passwords, factory default logins and devices that...
May 25, 2023 · (Reuters) - Its name is redolent of an exotic electrical storm. But is the freshly christened hacking group "Volt Typhoon" an imminent danger to American infrastructure, or just...
