Malware

Pierluigi Paganini December 21, 2021
Log4j Vulnerability Aftermath

Uptycs researchers have observed attacks related to miners, DDOS malware and some variants of ransomware actively leveraging LogforShell flaw in log4j. Last week the Log4j vulnerability turned the internet upside down. The impact of the vulnerability is massive and attackers have started taking advantage of the flaw. So far we have observed attacks related to […]

Pierluigi Paganini December 20, 2021
DarkWatchman RAT uses Windows Registry fileless storage mechanism

DarkWatchman is a new lightweight javascript-based Remote Access Trojan (RAT) that uses novel methods for fileless persistence. Recently Prevailion experts detected a malicious javascript-based Remote Access Trojan (RAT) dubbed DarkWatchman that uses a robust Domain Generation Algorithm (DGA) to contact the C2 infrastructure and novel methods for fileless persistence, on-system activity, and dynamic run-time capabilities […]

Pierluigi Paganini December 20, 2021
Alleged APT implanted a backdoor in the network of a US federal agency

An alleged APT group planted a backdoor in the network of a U.S. federal government commission associated with international rights. Experts spotted a backdoor in the network of an unnamed U.S. federal government commission associated with international rights. The backdoor allowed the threat actors to achieve complete control over the infected networks, experts described the […]

Pierluigi Paganini December 19, 2021
TellYouThePass ransomware resurges and exploits Log4Shell in recent attacks

The TellYouThePass ransomware resurged and exploits the Apache Log4j flaw (Log4Shell) to target both Linux and Windows systems. Researchers from KnownSec 404 Team and Sangfor Threat Intelligence Team reported that the TellYouThePass ransomware resurged and is exploiting the Apache Log4j CVE-2021-44228 flaw to target both Linux and Windows systems. “On December 13, Sangfor’s terminal security […]

Pierluigi Paganini December 17, 2021
Conti ransomware gang exploits Log4Shell bug in its operations

The Conti ransomware gang is the first ransomware operation exploiting the Log4Shell vulnerability to target VMware vCenter Servers. Conti ransomware gang is the first professional race that leverages Log4Shell exploit to compromise VMware vCenter Server installs. The ransomware group used the exploit to target internal devices that are not protected. Conti operators run a private Ransomware-as-a-Service (RaaS), […]

Pierluigi Paganini December 17, 2021
Phorpiex botnet is back, in 2021 it $500K worth of crypto assets

Experts reported the resurgence of the Phorpiex botnet, in one year it allowed to steal crypto assets worth of half a million dollars. Experts at Check Point Research have monitored the resurgence of the Phorpiex botnet, an old threat that was involved in sextortion spam campaigns, crypto-jacking, cryptocurrency clipping (substituting the original wallet address saved in […]

Pierluigi Paganini December 17, 2021
PseudoManuscrypt, a mysterious massive cyber espionage campaign

Tens of thousands of devices worldwide, including many industrial control systems (ICS), have been hit by the PseudoManuscrypt spyware. Kaspersky researchers reported that tens of thousands of devices belonging to industrial and government organizations worldwide have been hit by the PseudoManuscrypt spyware. The name PseudoManuscrypt comes from the similarities with the Manuscrypt malware used by the North Korea-linked […]

Pierluigi Paganini December 16, 2021
Multiple Nation-State actors are exploiting Log4Shell flaw

Nation-state actors from China, Iran, North Korea, and Turkey are attempting to exploit the Log4Shell vulnerability to in attacks in the wild. Microsoft researchers reported that Nation-state actors from China, Iran, North Korea, and Turkey are now abusing the Log4Shell (CVE-2021-44228) in the Log4J library in their campaigns. Some of the groups exploiting the vulnerability are China-linked Hafnium and […]

Pierluigi Paganini December 16, 2021
Owowa, a malicious IIS Server module used to steal Microsoft Exchange credentials

Threat actors are using a malicious Internet Information Services (IIS) Server module, dubbed Owowa, to steal Microsoft Exchange credentials. Kaspersky researchers spotted malicious actors while deploying a previously undiscovered binary, an Internet Information Services (IIS) webserver module dubbed “Owowa,” on Microsoft Exchange Outlook Web Access servers to steal credentials and for remote code execution. “Owowa […]

Pierluigi Paganini December 14, 2021
Hackers exploit Log4Shell to drop Khonsari Ransomware on Windows systems

Bitdefender researchers discovered that threat actors are attempting to exploit the Log4Shell flaw to deliver the new Khonsari ransomware on Windows machines. Bitdefender researchers discovered that threat actors are attempting to exploit the Log4Shell vulnerability (CVE-2021-44228) to deliver the new Khonsari ransomware on Windows machines. Experts warn that threat actors are attempting to exploit the Log4Shell flaw […]