The new malware, dubbed Mylobot, pulls together a variety of techniques to gain a foothold and remain undiscovered.
Among the strategies employed are:
Anti-VM techniques
Anti-sandbox techniques
Anti-debugging techniques
Wrapping internal parts with an encrypted resource file
Code injection
Process hollowing (a technique where an attacker creates a new process in a suspended state and replaces its image with the one that is to be hidden)
Reflective EXE (executing EXE files directly from memory, without having them on disk)
A 14-day delay before accessing its C&C servers.
The malware allows the attackers to gain full control of the infected machine, enabling them to add payloads for other purposes such as banking Trojans, keyloggers, and distributed denial of service (DDoS) use.
MyloBot shuts down Windows Defender and Windows Update upon installation and blocks the firewall for unimpeded deployment and communication with the C&C.
The researchers also connected the programming patterns to Dorkbot and Locky, as the malware authors may have been in discussion with previous attackers or even underground sellers.
This connection was reinforced when the C&C server was traced to the dark web and found to have been used in earlier malware attacks.
One of MyloBot’s phases also shuts down and deletes any existing malware in the system, scanning for specific target folders and running files in the %APPDATA% folder.
The researchers regard this distinct behavior as a reaction to the growing field of competing threat actors, making sure that the malware authors profit the most from the victims.
Sign Up For Threat Alerts
Jul 04, 2023
Rhysida Ransomware RaaS Crawls Out of Crimeware...
The Rhysida ransomware-as-a-service (RaaS) group has gone from a dubious newcomer to a fully-fledged ransomware...
Jun 26, 2023
Operation Magalenha – Long-Running Campaign Pursues Portuguese...
The attackers can steal credentials and exfiltrate users' data and personal information, which can be...
Apr 24, 2023
Lazarus Group Adds Linux Malware to Arsenal...
Researchers have discovered a new campaign conducted by Lazarus, known as "Operation DreamJob," which targets...
Apr 23, 2023
Additional IOCs for 3cx breach
Recently an unexpected malicious activity emanating from a legitimate, signed binary, 3CXDesktopApp was observed.
Apr 23, 2023
Ex-Conti and FIN7 Actors Collaborate with New...
IBM Security X-Force recently discovered a new malware family Analysts have called "Domino," which Analysts...
Apr 20, 2023
AuKill EDR killer malware abuses Process Explorer...
The AuKill tool abuses an outdated version of the driver used by version 16.32 of...
Apr 20, 2023
Fake Chrome updates spread malware
A campaign running since the end of last year is using hacked sites to push...
Apr 20, 2023
QBot using new attack vector in its...
QBot, also known as QakBot, previously operated as a banking trojan and has since transformed...
Apr 20, 2023
CrossLock Ransomware Emerges: New Golang – Based...
The CrossLock ransomware employs the double extortion technique to increase the likelihood of payment from...
Apr 20, 2023
Windows Zero-Day Vulnerability CVE-2023-28252 Exploited by Nokoyawa...
A zero-day vulnerability in the Microsoft Windows system, which also affects Windows 11, has been...
Apr 18, 2023
Additional IOcs for 3cx breach
Recently an unexpected malicious activity emanating from a legitimate, signed binary, 3CXDesktopApp was observed. As...
Apr 18, 2023
Additional IOcs for 3cx breach
Recently an unexpected malicious activity emanating from a legitimate, signed binary, 3CXDesktopApp was observed. As...
Apr 18, 2023
APT36 Expands Interest Within Indian Education Sector
Symantec described UPS in 2016 report as Buckeye (also known as APT3 Gothic Panda UPS...
Apr 17, 2023
ChinaZ DDoS Bot Malware Distributed To Linux...
The ChinaZ DDoS bot malware was discovered targeting Linux systems while a version for Microsoft...
Apr 16, 2023
Resurgence Of The Mexals Cryptojacking Campaign
The Mexals crypto jacking campaign has been in operation since at least 2021 and continues...