Void Rabisu Targets Female Political Leaders with New Slimmed-Down ROMCOM Variant

Credit to Author: Feike Hacquebord| Date: Fri, 13 Oct 2023 00:00:00 +0000

Almost a year after Void Rabisu shifted its targeting from opportunistic ransomware attacks with an emphasis on cyberespionage, the threat actor is still developing its main malware, the ROMCOM backdoor.

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DarkGate Opens Organizations for Attack via Skype, Teams

Credit to Author: Trent Bessell| Date: Thu, 12 Oct 2023 00:00:00 +0000

We detail an ongoing campaign abusing messaging platforms Skype and Teams to distribute the DarkGate malware to targeted organizations. We also discovered that once DarkGate is installed on the victim’s system, additional payloads were introduced to the environment.

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APT34 Deploys Phishing Attack With New Malware

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.

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Examining the Activities of the Turla APT Group

Credit 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.

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Attacks on 5G Infrastructure From Users’ Devices

Credit 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.

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Earth Lusca Employs New Linux Backdoor, Uses Cobalt Strike for Lateral Movement

Credit 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.

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Earth Estries Targets Government, Tech for Cyberespionage

Credit 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.

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Detecting BPFDoor Backdoor Variants Abusing BPF Filters

Credit 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.

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