In June 2024, Kaspersky discovered a macOS version of the HZ Rat backdoor targeting users of the enterprise messenger DingTalk and the social network and messaging platform WeChat.
The samples Kaspersky found almost exactly replicate the functionality of the Windows version of the backdoor and differ only in the payload, which is received in the form of shell scripts from the attackers’ server. The researchers noticed that some versions of the backdoor use local IP addresses to connect to C2, which led us to believe the threat may be targeted. This also points to an intention to exploit the backdoor for lateral movement through the victim’s network.
Read more…
Source: Kaspersky
Related:
- Two years after WannaCry, a million computers remain at risk
May 12, 2019
Two years ago today, a powerful ransomware began spreading across the world. WannaCry spread like wildfire, encrypting hundreds of thousands of computers in more than 150 countries in a matter of hours. It was the first time that ransomware, a malware that encrypts a user’s files and demands cryptocurrency in ransom to unlock them, had spread across ...
- ScarCruft APT Adds Bluetooth Harvester to its Malware Bag of Tricks
May 11, 2019
The ScarCruft Korean-speaking APT is changing up its espionage tactics to include an unusual piece of malware devoted to harvesting Bluetooth information – while also showing some overlap with the DarkHotel APT. An analysis of ScarCruft’s binary infection procedure by Kaspersky Lab shows that in a campaign that continued over the course of 2018, the group used ...
- North Korea debuts new Electricfish malware in Hidden Cobra campaigns
May 10, 2019
The Department of Homeland Security (DHS) and the Federal Bureau of Investigation (FBI) have released a joint security advisory warning of a new strain of malware being used in North Korean cyberattacks. Dubbed Electricfish, the malware was uncovered while the departments were tracking the activities of Hidden Cobra, a threat group believed to be state-sponsored and ...
- Lax Telco Security Allows Mobile Phone Hijacking and Redirects
May 9, 2019
As anyone who has called into a bank or utility provider lately knows, security for customer service routines – the prescribed ways in which support reps verify the identity of customers that call in – are being continually upgraded. Two-factor authentication, voice passwords, various security questions (“what was the name of your first pet,” for ...
- FIN7.5: the infamous cybercrime rig “FIN7” continues its activities
May 8, 2019
On August 1, 2018, the US Department of Justice announced that it had arrested several individuals suspected of having ties to the FIN7 cybercrime rig. FIN7 operations are linked to numerous intrusion attempts having targeted hundreds of companies since at least as early as 2015. Interestingly, this threat actor created fake companies in order to ...
- Surge of MegaCortex ransomware attacks detected
May 6, 2019
UK cyber-security firm Sophos reported detecting a spike in ransomware attacks at the end of last week from a new strain named MegaCortex. Sophos said the ransomware appears to have been designed to target large enterprise networks as part of carefully planned targeted intrusions –in a tactic that is known as “big-game hunting.” The modus operandi is ...