- Dissected: A dropper-as-a-service miscreants pay to push their malware onto potentially 1,000s of victims
September 2, 2021
A dropper-as-a-service, which cyber-crime newbies can use to easily get their malware onto thousands of victims’ PCs, has been dissected and documented this week. A dropper is a program that, when run, executes a payload of malicious code. The dropper is similar to a trojan, and it can sometimes have other functionality, but its main purpose ...
- LockFile Ransomware Uses Never-Before Seen Encryption to Avoid Detection
August 31, 2021
Researchers discovered a novel ransomware emerging on the heels of the ProxyShell vulnerabilities discovery in Microsoft Exchange servers. The threat, dubbed LockFile, uses a unique “intermittent encryption” method as a way to evade detection as well as adopting tactics from previous ransomware gangs. Discovered by researchers at Sophos, LockFile ransomware encrypts every 16 bytes of a ...
- Cybercriminal sells tool to hide malware in AMD, NVIDIA GPUs
August 31, 2021
Cybercriminals are making strides towards attacks with malware that can execute code from the graphics processing unit (GPU) of a compromised system. While the method is not new and demo code has been published before, projects so far came from the academic world or were incomplete and unrefined. Earlier this month, the proof-of-concept (PoC) was sold on ...
- US Media, Retailers Targeted by New SparklingGoblin APT
August 25, 2021
An emerging international cybergang is broadening its targets to include North American media firms, universities and one computer retailer. The advanced persistent threat (APT) group is new, according to researchers who dubbed it SparklingGoblin. Also new is a novel backdoor technique, called SideWalk, used by the APT to penetrate cybersecurity defenses. SparklingGoblin, according to ESET researchers ...
- Triada Trojan in WhatsApp mod
August 24, 2021
WhatsApp users sometimes feel the official app is lacking a useful feature of one sort or another, be it animated themes, self-destructing messages which automatically delete themselves, the option of hiding certain conversations from the main list, automatic translation of messages, or the option of viewing messages that have been deleted by the sender. This ...
- APT41 Resurfaces as Earth Baku With New Cyberespionage Campaign
August 24, 2021
Trend Micro researchers have uncovered a cyberespionage campaign being perpetrated by Earth Baku, an advanced persistent threat (APT) group with a known history of carrying out cyberattacks under the alias APT41. This is not the group’s first foray into cyberespionage, and its long list of past cybercrimes also includes ransomware and cryptocurrency mining attacks. Earth Baku ...
- IT threat evolution Q2 2021
August 12, 2021
It is quite common for Chinese-speaking threat actors to share tools and methodologies: one such example is the infamous “DLL side-loading triad”: a legitimate executable, a malicious DLL to be side-loaded by it and an encoded payload, generally dropped from a self-extracting archive. This was first thought to be a signature of LuckyMouse, but we ...
- New AdLoad malware variant slips through Apple’s XProtect defenses
August 11, 2021
A new AdLoad malware variant is slipping through Apple’s YARA signature-based XProtect built-in antivirus to infect Macs as part of multiple campaigns tracked by cybersecurity firm SentinelOne. AdLoad is a widespread trojan targeting the macOS platform since at least since late 2017 and used to deploy various malicious payloads, including adware and Potentially Unwanted Applications (PUAs), Read ...
- Cinobi Banking Trojan Targets Cryptocurrency Exchange Users via Malvertising
August 9, 2021
In a previous blog entry, we reported on a campaign, which we labeled “Operation Overtrap,” that targeted Japan with a new banking trojan called Cinobi. The campaign, which was perpetrated by a group we named “Water Kappa,” delivered Cinobi via spam. It also delivered the trojan using the Bottle exploit kit, which included newer Internet ...
- Security team finds Crimea manifesto buried in VBA Rat using double attack vectors
July 29, 2021
Hossein Jazi and Malwarebytes’ Threat Intelligence team released a report on Thursday highlighting a new threat actor potentially targeting Russian and pro-Russian individuals. The attackers included a manifesto about Crimea, indicating the attack may have been politically motivated. The attacks feature a suspicious document named “Manifest.docx” that uniquely downloads and executes double attack vectors: remote template ...