Threat Source newsletter (May 5, 2022) — Emotet is using up all of its nine lives

By Jon Munshaw. Welcome to this week’s edition of the Threat Source newsletter. Emotet made headlines last week for being “back” after a major international law enforcement takedown last year. But I’m here to argue that Emotet never left, and honestly, I’m not sure it ever... This is only the...

Researchers Warn of 'Raspberry Robin' Malware Spreading via External Drives

Cybersecurity researchers have discovered a new Windows malware with worm-like capabilities and is propagated by means of removable USB devices. Attributing the malware to a cluster named "Raspberry Robin," Red Canary researchers noted that the worm "leverages Windows Installer to reach out to...

Tarrask malware uses scheduled tasks for defense evasion

As Microsoft continues to track the high-priority state-sponsored threat actor HAFNIUM, new activity has been uncovered that leverages unpatched zero-day vulnerabilities as initial vectors. The Microsoft Detection and Response Team DART in collaboration with the Microsoft Threat Intelligence Cent...

Researchers Uncover How Colibri Malware Stays Persistent on Hacked Systems

Cybersecurity researchers have detailed a "simple but efficient" persistence mechanism adopted by a relatively nascent malware loader called Colibri, which has been observed deploying a Windows information stealer known as Vidar as part of a new campaign. "The attack starts with a malicious Word...

ScheduleRunner - A C# Tool With More Flexibility To Customize Scheduled Task For Both Persistence And Lateral Movement In Red Team Operation

Scheduled task is one of the most popular attack technique in the past decade and now it is still commonly used by hackers/red teamers for persistence and lateral movement. A number of C tools were already developed to simulate the attack using scheduled task. I have been playing around with some...

Colibri Loader combines Task Scheduler and PowerShell in clever persistence technique

This blog post was authored by Ankur Saini, with contributions from Hossein Jazi and Jérôme Segura 2022-04-07: Added MITRE ATT&CK mappings 2022-04-07: Changed the name of the final payload from Vidar to Mars Stealer Colibri Loader is a relatively new piece of malware that first appeared on...

Deep Panda deploys new rootkit “Fire Chili” by exploiting Log4shell in VMware horizon

THREAT LEVEL: Red For a detailed advisory, download the pdf file here Deep Panda, a Chinese APT group, took advantage of the well-known Log4Shell vulnerability in VMware Horizon servers to deploy a backdoor, rootkit, and steal sensitive data. This threat actor is primarily targeting firms in the...

DOS Vulnerability discovered in SonicWall Next-Generation Firewall

THREAT LEVEL: Amber For a detailed advisory, download the pdf file here SonicWall, a manufacturer of security hardware discovered a flaw in their SonicOS security operating system that allows denial of service DoS attacks and could lead to remote code execution RCE. The identified vulnerability...

New Report on Okta Hack Reveals the Entire Episode LAPSUS$ Attack

An independent security researcher has shared what's a detailed timeline of events that transpired as the notorious LAPSUS$ extortion gang broke into a third-party provider linked to the cyber incident at Okta in late January 2022. In a set of screenshots posted on Twitter, Bill Demirkapi publish...

North Korean state-sponsored threat actor Lazarus Group exploiting Chrome Zero-day vulnerability

THREAT LEVEL: Red. For a detailed advisory, download the pdf file here For more than a month before a fix was available, North Korean state hackers known as Lazarus group exploited a zero-day, remote code execution vulnerability CVE-2022-0609 in Google Chromes web browser. The attack mainly targe...

Magic Hound Exploiting Old Microsoft Exchange ProxyShell Vulnerabilities

THREAT LEVEL: Red. For a detailed advisory, download the pdf file here APT35 aka Magic Hound, an Iranian-backed threat group, has begun using Microsoft Exchange ProxyShell vulnerabilities as an initial attack vector and to execute code through multiple web shells. The group has primarily targeted...

TrickBot Malware Abusing MikroTik Routers as Proxies for Command-and-Control

Microsoft on Wednesday detailed a previously undiscovered technique put to use by the TrickBot malware that involves using compromised Internet of Things IoT devices as a go-between for establishing communications with the command-and-control C2 servers. "By using MikroTik routers as proxy server...

Attackers Escape Kubernetes Containers using “cr8escape” Vulnerability in CRI-O

THREAT LEVEL: Red. For a detailed advisory, download the pdf file here. A flaw in CRI-O, an open-source Linux implementation of Kubernetes Container Runtime Interface CRI, was discovered that may allow an attacker to gain remote control of servers and potentially poison the container with attack...

CVE-2021-39689

In multiple functions of odsignmain.cpp, there is a possible way to persist system attack due to a logic error in the code. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions:...

Uncovering Trickbot’s use of IoT devices in command-and-control infrastructure

Trickbot, a sophisticated trojan that has evolved significantly since its discovery in 2016, has continually expanded its capabilities and, even with disruption efforts and news of its infrastructure going offline, it has managed to remain one of the most persistent threats in recent years. The...

Uncovering Trickbot’s use of IoT devices in command-and-control infrastructure

Trickbot, a sophisticated trojan that has evolved significantly since its discovery in 2016, has continually expanded its capabilities and, even with disruption efforts and news of its infrastructure going offline, it has managed to remain one of the most persistent threats in recent years. The...

CVE-2021-41848

An issue was discovered in Luna Simo PPR1.180610.011/202001031830. It mishandles software updates such that local third-party apps can provide a spoofed software update file that contains an arbitrary shell script and arbitrary ARM binary, where both will be executed as the root user with an...

CVE-2022-25219

A null byte interaction error has been discovered in the code that the telnetdstartup daemon uses to construct a pair of ephemeral passwords that allow a user to spawn a telnet service on the router, and to ensure that the telnet service persists upon reboot. By means of a crafted exchange of UDP...

HPESBST04258 rev.1 - HPE Nimble Storage and HPE Alletra 6000 Peer Persistence Witness OVA Using Polkit's Pkexec, Local Elevated Privileges

Potential Security Impact: Local: Elevated Privileges SUPPORTED SOFTWARE VERSIONS: ONLY impacted versions are listed. HPE Alletra 6000 v5.2.1.0, v5.3.x, v6.0.0.0 HPE Nimble Storage Hybrid Flash Arrays v5.2.1.0, v5.3.x, v6.0.0.0 Nimble Storage All Flash Arrays v5.2.1.0, v5.3.x, v6.0.0.0 CVSS Score...

PYSEC-2022-34

HTTPie is a command-line HTTP client. HTTPie has the practical concept of sessions, which help users to persistently store some of the state that belongs to the outgoing requests and incoming responses on the disk for further usage. Before 3.1.0, HTTPie didn‘t distinguish between cookies and...