Packers or crypters are widely used to protect malicious software from detection and static analysis. These auxiliary tools, through the use of compression and encryption algorithms, enable cybercriminals to prepare unique samples of malicious software for each campaign or even per victim, which complicates the work of antivirus software.
In the case of certain packers, classifying malicious software without employing dynamic analysis becomes a challenging task. To analyze a malicious sample and extract its configuration data, such as encryption keys and command and control server addresses, we must first unpack it. We can do this by running the malicious software in a sandbox environment, such as CAPE, followed by extracting the memory dumps. However, this method has some drawbacks.
Read more…
Source: Check Point
Related:
- Mirai Botnet Exploit Weaponized to Attack IoT Devices via CVE-2020-5902
July 28, 2020
Following the initial disclosure of two F5 BIG-IP vulnerabilities on the first week of July, we continued monitoring and analyzing the vulnerabilities and other related activities to further understand their severities. Based on the workaround published for CVE-2020-5902, we found an internet of things (IoT) Mirai botnet downloader (detected by Trend Micro as Trojan.SH.MIRAI.BOI) that ...
- Ensiko: A Webshell With Ransomware Capabilities
July 27, 2020
Ensiko is a PHP web shell with ransomware capabilities that targets various platforms such as Linux, Windows, macOS, or any other platform that has PHP installed. The malware has the capability to remotely control the system and accept commands to perform malicious activities on the infected machine. It can also execute shell commands on an infected ...
- OilRig Targets Middle Eastern Telecom Organization and Adds Novel C2 Channel with Steganography to Its Inventory
July 22, 2020
While analyzing an attack against a Middle Eastern telecommunications organization, Unit 42 has discovered a variant of an OilRig-associated tool we call RDAT using a novel email-based command and control (C2) channel that relied on a technique known as steganography to hide commands and data within bitmap images attached to emails. In May 2020, Symantec published ...
- MATA: Multi-platform targeted malware framework
July 22, 2020
As the IT and OT environment becomes more complex, adversaries are quick to adapt their attack strategy. For example, as users’ work environments diversify, adversaries are busy acquiring the TTPs to infiltrate systems. Recently, we reported to our Threat Intelligence Portal customers a similar malware framework that internally we called MATA. The MATA malware framework ...
- Going Down the Spyware Rabbit Hole with SilkBean Mobile Malware
July 22, 2020
An Android spyware attack was recently discovered that targeted the Uyghur ethnic minority group – since 2013. In this in-depth Threatpost podcast Christoph Hebeisen, who leads the Security Intelligence Research Division at Lookout, shares a behind-the-scenes look at how his team discovered and tracked three never-before-seen surveillanceware tools, dubbed SilkBean, GoldenEagle and CarbonSteal. Read more… Source: ThreatPost
- Updates on ThiefQuest, the Quickly-Evolving macOS Malware
July 17, 2020
Right as July of this year began, we noticed an emerging malware dubbed by most as ThiefQuest (also known as EvilQuest), a threat that targets macOS devices, encrypts files, and installs keyloggers in affected systems. It has been found in pirated versions of macOS shared on popular torrent sites. Developments on the malware have been ...