CISA released three Industrial Control Systems (ICS) advisories on March 6, 2025. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-25-065-01 Hitachi Energy PCU400 ICSA-25-065-02 Hitachi Energy Relion 670/650/SAM600-IO  ICSA-25-037-02 Schneider Electric EcoStruxure (Update A)  CISA encourages users and administrators to review newly released ICS advisories for technical details… Read more

View CSAF 1. EXECUTIVE SUMMARY CVSS v3 7.5 ATTENTION: Exploitable remotely/low attack complexity Vendor: Hitachi Energy Equipment: PCU400, PCULogger Vulnerabilities: Access of Resource Using Incompatible Type (‘Type Confusion’), NULL Pointer Dereference, Use After Free, Double Free, Observable Discrepancy, Out-of-bounds Read 2. RISK EVALUATION Exploitation of these vulnerabilities could allow an attacker to access or decrypt… Read more

Initial Access Amedey is installed by msiexec.exe when you open a malicious excel file. From the document file technique, the threat actor is considered TA505. Excel 4.0 Macro Utilized by TA505 to Target Financial Institutions Recently Threat Actor TA505 Targets Financial Enterprises Using LOLBins and a New Backdoor Malware https://app.any.run/tasks/3430e711-7bb1-49b4-ac07-86b1a6b5c784 The download URL is as… Read more

First On December 11, 2019, we were strolling through ad-networks. As before, we observed RIG, Fallout and Underminer Exploit Kit, but observed other interesting Drive-by Download attack. We call it “Bottle Exploit Kit”. BottleEK targets only Japanese users. According to our research, BottleEK has been active at least in September 2019. This time we introduce… Read more

First We have been observing the Fallout Exploit Kit since August 2018. Fallout is using non-characteristic URL and heavily obfuscated landing page. The user still exists and attacks are observed daily. Recently, we were investigating an attack campaign that infects Raccoon Stealer in the flow of PopAds-> KeitaroTDS-> Fallout. About Fallout, we have already written… Read more

First Since July 11 2019, we have observed a new Drive-by Download attack. It is redirected from the ad-network. It does not use a conventional Exploit Kit such as RIG or Fallout, but uses its own exploit kit. We call this “Radio Exploit Kit”. Malvertising -> Unknown EK🚀 -> #AZORult(CC: @malware_traffic, @jeromesegura, @BleepinComputer)https://t.co/CkSfs38D8q pic.twitter.com/Uk37R7g1xh —… Read more

Abstract Several targeted attack groups share the tools used in the attack and are reported to be doing similar attacks. Attack tools are also shared in attacks targeting Japanese organizations, for example, Tick. Tick may use a tool called Royal Road RTF Weaponizer. And Royal Road is used by targeted attack groups such as Goblin… Read more

Note: This blog post doesn’t make sense to many It’s 2021 now. Moreover, the quarter has already passed. I thought Drive-by Download attack was dead four years ago. Angler Exploit Kit has disappeared, pseudo-Darkleech and EITest campaign have disappeared, and RIG Exploit Kit has also declined. At that time, Drive-by Download attack was definitely supposed… Read more

Abstract We introduced the “Royal Road RTF Weaponizer” in our previous blog [1] (and presented at Japan Security Analyst Conference 2020 and CPX 360 CPRCon 2020). Royal Road is a tool shared by many targeted attack groups believed to belong to China. It’s been a year since our previous blog, and Royal Road is still… Read more

This blog post is based on “GroundPeony: Crawling with Malice” that we presented at HITCON CMT 2023. We are grateful to HITCON for giving us the opportunity to present. https://hitcon.org/2023/CMT/en/agenda/e8fe6942-9c60-419a-b9a0-dbda80a27ad0/ Presentation material (PDF) is here. Abstract In March 2023, we discovered a cyber attack campaign targeting Taiwanese government agencies. The campaign employed devious tactics such… Read more