SilverFox Targets Japanese Firm
BYOVD attacks used to deliver ValleyRAT for remote access
A Chinese cybercrime group known as Silver Fox has launched a targeted attack on a Japanese industrial manufacturing organization. The group utilized a bring your own vulnerable driver (BYOVD) attack chain, incorporating new drivers to ultimately deliver ValleyRAT, a remote access trojan. This campaign involved the abuse of legitimate and vulnerable drivers to gain persistent remote access.
The attack targeted a specific organization in the industrial manufacturing sector in Japan. The use of BYOVD attacks and ValleyRAT suggests a sophisticated approach to gaining and maintaining unauthorized access.
Why it matters
This incident highlights the ongoing threat of targeted cyberattacks against industrial organizations. The use of BYOVD attacks and custom malware like ValleyRAT indicates a high level of sophistication and adaptability among threat actors.
This incident highlights the ongoing threat of targeted cyberattacks against industrial organizations.
What you can learn from this
- The BYOVD attack technique relies on exploiting vulnerable drivers, emphasizing the importance of keeping software up-to-date and using secure drivers to prevent such attacks.
- The use of ValleyRAT for persistent remote access underscores the need for robust endpoint security measures, including regular monitoring for suspicious activity and implementing measures to prevent unauthorized access.
- This incident demonstrates the value of network segmentation and trust boundary management in containing and mitigating the effects of targeted attacks.
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Sources
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