This is Yu Nakamura from Analysis Center. This entry is to explain features of Datper, malware used for targeted attacks against Japanese organisations and how to detect it from the logs. JPCERT/CC has been observing attacks using Datper since around June 2016. Research reports on the adversary are published from LAC [1], SecureWorks [2] and Palo Alto Networks [3]. The adversary had also conducted attacks using Daserf malware in the...
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Internet banking services across the globe have been exposed to the threat by unauthorized money transfers and suffering large-scale losses. In this landscape, an operation led by international law enforcement agencies has been in effect since November 2016 to capture criminal groups conducting unauthorised online banking transfers and dismantle the attack infrastructure (the Avalanche botnet). JPCERT/CC is one of the many supporters of this operation. For more information about the...
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In a past article, we introduced “impfuzzy for Neo4j”, a tool to visualise results of malware clustering (developed by JPCERT/CC). In this article, we will show the result of clustering Emdivi using the tool. Emdivi had been seen until around 2015 in targeted attacks against Japanese organisations. For more information about Emdivi, please refer to JPCERT/CC’s report. Clustering Emdivi with impfuzzy for Neo4j Emdivi has two major variants - t17...
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JPCERT/CC has been seeing a number of APT intrusions where attackers compromise a host with malware then moving laterally inside network in order to steal confidential information. For lateral movement, attackers use tools downloaded on infected hosts and Windows commands. In incident investigation, traces of tool and command executions are examined through logs. For an effective incident investigation, a reference about logs recorded upon tool and command executions would be...
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Hello, this is Misaki Kimura from Watch and Warning Group. JPCERT/CC conducted “Survey on the Establishment and Operation of CSIRTs in Japan” in the end of 2015. Following the Japanese report released in 2016, we have just released the English version of the report on JPCERT/CC website to share the outcomes with the information security community member all around the globe. Although the basis of social composition, culture, organizational constitution...
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Our previous blog entry introduced details of RedLeaves, a type of malware used for targeted attacks. Since then, we’ve seen reports including those from US-CERT that Management Service Providers (MSPs) have been targeted [1] [2]. In the US-CERT report, some instances have been identified where RedLeaves malware has only been found within memory with no on-disk evidence because of the behavior of self-elimination after the infection. To verify the infection...
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Hi again, this is Shusei Tomonaga from the Analysis Center. Since around October 2016, JPCERT/CC has been confirming information leakage and other damages caused by malware ‘RedLeaves’. It is a new type of malware which has been observed since 2016 in attachments to targeted emails. This entry introduces details of RedLeaves and results of our analysis including its relation to PlugX, and a tool which is used as the base...
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Hi this is Sho Aoki from Watch and Warning Group. Have you ever tried “game-based learning”? Learning through games is useful since it is not only fun and easy, but also provides opportunities for thinking. It has been applied widely for educational purposes. In the area of cyber security as well, there are board games released from security vendors, and they have been conducted at schools and companies. Today I...
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Hi again, this is Shusei Tomonaga from the Analysis Center. This entry introduces a malware clustering tool “impfuzzy for Neo4j” developed by JPCERT/CC. Overview of impfuzzy for Neo4j impfuzzy for Neo4j is a tool to visualise results of malware clustering using a graph database, Neo4j. A graph database is a database for handling data structure comprised of records (nodes) and relations among the records. Neo4j provides functions to visualise registered...
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Hi again, this is Shusei Tomonaga from the Analysis Center. In this article, I’d like to share some of our findings about ChChes (which we introduced in a previous article) that it leverages PowerSploit [1] – an open source tool – for infection. Flow of ChChes Infection The samples that JPCERT/CC confirmed this time infect machines by leveraging shortcut files. The flow of events from a victim opening the shortcut...
