Credit to Author: Mohamed Fahmy| Date: Fri, 29 Sep 2023 00:00:00 +0000
We observed and tracked the advanced persistent threat (APT) APT34 group with a new malware variant accompanying a phishing attack comparatively similar to the SideTwist backdoor malware. Following the campaign, the group abused a fake license registration form of an African government agency to target a victim in Saudi Arabia.
Read moreCredit to Author: Srivathsa Sharma| Date: Fri, 22 Sep 2023 00:00:00 +0000
We examine the campaigns of the cyberespionage group known as Turla over the years, with a special focus on the key MITRE techniques and the corresponding IDs associated with the threat actor group.
Read moreCredit to Author: Salim S.I.| Date: Wed, 20 Sep 2023 00:00:00 +0000
Crafted packets from cellular devices such as mobile phones can exploit faulty state machines in the 5G core to attack cellular infrastructure. Smart devices that critical industries such as defense, utilities, and the medical sectors use for their daily operations depend on the speed, efficiency, and productivity brought by 5G. This entry describes CVE-2021-45462 as a potential use case to deploy a denial-of-service (DoS) attack to private 5G networks.
Read moreCredit to Author: Joseph C Chen| Date: Mon, 18 Sep 2023 00:00:00 +0000
While monitoring Earth Lusca, we discovered an intriguing, encrypted file on the threat actor’s server — a Linux-based malware, which appears to originate from the open-source Windows backdoor Trochilus, which we’ve dubbed SprySOCKS due to its swift behavior and SOCKS implementation.
Read moreCredit to Author: Ted Lee| Date: Wed, 30 Aug 2023 00:00:00 +0000
We break down a new cyberespionage campaign deployed by a cybercriminal group we named Earth Estries. Analyzing the tactics, techniques, and procedures (TTPs) employed, we observed overlaps with the advanced persistent threat (APT) group FamousSparrow as Earth Estries targets governments and organizations in the technology sector.
Read moreCredit to Author: Fernando Merces| Date: Thu, 13 Jul 2023 00:00:00 +0000
An analysis of advanced persistent threat (APT) group Red Menshen’s different variants of backdoor BPFDoor as it evolves since it was first documented in 2021.
Read moreCredit to Author: Peter Girnus| Date: Tue, 20 Jun 2023 00:00:00 +0000
This is the third installment of a three-part technical analysis of the fully undetectable (FUD) obfuscation engine BatCloak and SeroXen malware. In this entry, we document the techniques used to spread and abuse SeroXen, as well as the security risks, impact, implications of, and insights into highly evasive FUD batch obfuscators.
Read moreCredit to Author: Peter Girnus| Date: Thu, 15 Jun 2023 00:00:00 +0000
We looked into the documented behavior of SeroXen malware and noted the inclusion of the latest iteration of the batch obfuscation engine BatCloak to generate a fully undetectable (FUD) .bat loader. This is the second part of a three-part series documenting the abuse of BatCloak’s evasion capabilities and interoperability with other malware.
Read moreCredit to Author: Sunny Lu| Date: Wed, 14 Jun 2023 00:00:00 +0000
This blog entry discusses the more technical details on the most recent tools, techniques, and procedures (TTPs) leveraged by the Earth Preta APT group, and tackles how we were able to correlate different indicators connected to this threat actor.
Read moreCredit to Author: Ted Lee| Date: Tue, 02 May 2023 00:00:00 +0000
After months of dormancy, Earth Longzhi, a subgroup of advanced persistent threat (APT) group APT41, has reemerged using new techniques in its infection routine. This blog entry forewarns readers of Earth Longzhi’s resilience as a noteworthy threat.
Read more