Exploit for Code Injection in Apache Solr

This is a PoC exploit for CVE-2019-0193, a vulnerability in the Windows operating system. The exploit is written in C and uses the Metasploit framework to target the Windows kernel. The exploit code is not provided, but it is likely that it uses a buffer overflow vulnerability to execute arbitrar...

This Asia-Pacific Cyber Espionage Campaign Went Undetected for 5 Years

An advanced group of Chinese hackers has recently been spotted to be behind a sustained cyber espionage campaign targeting government entities in Australia, Indonesia, Philippines, Vietnam, Thailand, Myanmar, and Brunei—which went undetected for at least five years and is still an ongoing threat...

DNSteal v2.0 - DNS Exfiltration Tool For Stealthily Sending Files Over DNS Requests

This is a fake DNS server that allows you to stealthily extract files from a victim machine through DNS requests. Below are a couple of different images showing examples of multiple file transfer and single verbose file transfer: Support for multiple files Gzip compression supported Now supports...

TrickBot Adds ActiveX Control, Hides Dropper in Images

The TrickBot banking trojan has gotten trickier, with the addition of a Windows 10 ActiveX control to execute malicious macros in boobytrapped documents. Michael Gorelik, researcher at Morphisec Labs, said that at least two dozen documents have come to light in the last few weeks that use ActiveX...

CVE-2020-1931

A command execution issue was found in Apache SpamAssassin prior to 3.4.3. Carefully crafted nefarious Configuration .cf files can be configured to run system commands similar to CVE-2018-11805. This issue is less stealthy and attempts to exploit the issue will throw warnings. Thanks to Damian...

Slack: Relative Path Vulnerability Results in Arbitrary Command Execution/Privilege Escalation

Overview The Nebula clients for Darwin and Windows call relative paths in "exec.Command" to "ifconfig" and "route" executables on Darwin, and to "netsh" on Windows. These commands are entered using relative paths, not absolute paths such as /sbin/ifconfig. When a binary is run with a relative pat...

TrickBot Adds Custom, Stealthy Backdoor to its Arsenal

The Russian-speaking cybercriminals behind the TrickBot malware have developed a stealthy backdoor dubbed “PowerTrick,” in order to infiltrate high-value targets. According to research from SentinelLabs, released on Thursday, PowerTrick is designed to execute commands and return the results in...

How Organizations Can Defend Against Advanced Persistent Threats

Advanced persistent threats APTs have emerged to be legitimate concerns for all organizations. APTs are threat actors that breach networks and infrastructures and stealthily lurk within them over extended spans of time. They typically perform complex hacks that allow them to steal or destroy data...

Stealthy Malware Flies Under AV Radar with Advanced Obfuscation

Researchers warn hackers are putting a new spin on old injection techniques and successfully end-running endpoint protection. They are tracking a campaign, that kicked off in January, that is still going strong exploiting weaknesses in web browsers. The objective is to hide in the background of...

Adding a Hardware Backdoor to a Networked Computer

Interesting proof of concept: At the CS3sthlm security conference later this month, security researcher Monta Elkins will show how he created a proof-of-concept version of that hardware hack in his basement. He intends to demonstrate just how easily spies, criminals, or saboteurs with even minima...

XDR Is The Best Remedy As Attackers Increasingly Seek To Evade EDR

Real enterprises are messy places. One messy reality is that enterprises don’t manage all their endpoints. A smart colleague turned me onto using the % of endpoints and servers managed as a prime security metric. On one end of the spectrum are places like universities that maybe manage 10% of the...

The Shenanigans Behind a Stealthy Apple Keychain Attack

An 18-year-old security researcher made headlines earlier this year with KeySteal, a macOS hack. Now he's showing the world how it worked...

Researchers in the Dark on Powerful LightNeuron Malware for Years

LightNeuron, a backdoor specifically designed to target Microsoft Exchange mail servers, has flown under the radar since at least 2014, despite being the malware linchpin at the center of several targeted campaigns. A fresh analysis of the recently uncovered code shows that it’s the first publicl...

What stealthy attacks are hiding in API data — and why do most WAF miss them?!

Is JSON really more secure than other data encoding formats? JSON is a serialization format that allows users to 1 send objects as strings and then 2 it sends applications to recover objects from those strings. So, the short answer is that the JSON format as dangerous as other serialization...

The Fileless, Non-Malware Menace

There’s an old expression: if it looks like a duck, walks like a duck, and quacks like a duck, then it must be a duck. What happens, though, if the duck in question is malware that doesn’t behave like typical malware? Namely, it doesn’t drop a file on your disk to infect your computer, hijack...

Stealthy Malware Disguises Itself as a WordPress License Key

UPDATE A spam-injecting malware is targeting WordPress site owners by disguising itself as a legitimate license key for a WordPress design theme. According to analysis from Sucuri, a customer opened a malware removal ticket reporting “some weird spam URLs injected onto their WordPress website.”...

Bad Actors Sizing Up Systems Via Lightweight Recon Malware

Well-known financial crime gang Cobalt Group and other threat actors have recently shifted tactics to incorporate lightweight modular downloaders that “vet” target machines for their attractiveness before proceeding with a full-fledged attack. The emergence of the AdvisorsBot and Marap malwares, ...

New Android Malware Framework Turns Apps Into Powerful Spyware

Security researchers have uncovered a new, powerful Android malware framework that is being used by cybercriminals to turn legitimate apps into spyware with extensive surveillance capabilities—as part of what seems to be a targeted espionage campaign. Legitimate Android applications when bundled...

New Trickbot Variant Touts Stealthy Code-Injection Trick

Trickbot has been around since 2016 – but a new variant of the infamous financial trojan has caught the eyes of researchers with a stealthy code-injection technique. Researchers at Cyberbit this week said that they have found a new Trickbot iteration that features a sneaky method of performing...

Researchers Developed Artificial Intelligence-Powered Stealthy Malware

Artificial Intelligence AI has been seen as a potential solution for automatically detecting and combating malware, and stop cyber attacks before they affect any organization. However, the same technology can also be weaponized by threat actors to power a new generation of malware that can evade...