JPCERT/CC has been observing attack activities by MirrorFace LODEINFO ...
List of “Incident”
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In early July 2023, JPCERT/CC confirmed a case of domain hijacking in which a domain used in Japan was unauthorizedly transferred to another registrar. This blog post describes the attack case. Attack overview Figure 1 shows the attack flow. The attacker first prepared a phishing site, which pretended to be a registrar on search site advertisements. Figure 1: the attack flow An attacker can steal account information and password (hereafter...
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Around May 2022, JPCERT/CC confirmed an attack activity against Japanese organizations that exploited F5 BIG-IP vulnerability (CVE-2022-1388). The targeted organizations have confirmed that data in BIG-IP has been compromised. We consider that this attack is related to the activities by BlackTech attack group. This blog article describes the attack activities that exploit this BIG-IP vulnerability. Attack code that exploits the BIG-IP vulnerability Below is a part of the attack code...
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JPCERT/CC releases a URL dataset of phishing sites confirmed from January 2019 to June 2022, as we received many requests for more specific information after publishing a blog article on trends of phishing sites and compromised domains in 2021. The list is available in the following GitHub repository. Phishing URL dataset from JPCERT/CC https://github.com/JPCERTCC/phishurl-list/ Each column contains the following: date: Date confirmed by JPCERT/CC URL: Entire URL of a phishing...
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JPCERT/CC received 44,242 incident reports in 2021 and of that 23,104 ...
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On 28 April 2021, Trend Micro reported the details of attacks exploiti...
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JPCERT/CC continues to observe cases of website being compromised and embedded with a malicious page. Visitors are redirected to a scam site or suspicious shopping site by malicious PHP script (hereafter, “PHP malware”). This article explains the details of PHP malware which is often found in websites in Japan. Cases observed On PHP malware-embedded websites, there are many malicious webpages that redirect visitors to a scam site or suspicious shopping...
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Publicly-accessible servers have been often targeted for attacks. In recent years, there are cases where these servers are compromised and embedded with a cryptocurrency mining tool. JPCERT/CC confirmed cases with XMRig [1] in February 2021. This article introduces the details of the cases and the tools used.Initial access/Lateral movementIn one of the recent cases, the attacker made several attempts to access the server with SSH protocol, and eventually logged in...
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The attack group Lazarus (also known as Hidden Cobra) conducts various attack operations. This article introduces malware (VSingle and ValeforBeta) and tools used in attacks against Japanese organisations. VSingle overview VSingle is a HTTP bot which executes arbitrary code from a remote network. It also downloads and executes plugins. Once launched, this malware runs Explorer and executes its main code through DLL injection. (Some samples do not perform DLL injection.)...
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Since October 2019, many cases of Emotet infection were reported. JPCERT/CC has published a security alert and a blog article detailing the detection and security measures, as well as providing notification and support for affected users. Europol announced that Emotet infrastructure was disrupted thanks to the joint operation together with some foreign authorities in January 2021 and information regarding affected users is to be distributed via the CERT network. In...
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