Remove Antivirus Remove DNS Remove Document Remove Encryption
article thumbnail

Detecting DNS implants: Old kitten, new tricks – A Saitama Case Study 

Fox IT

A recently uncovered malware sample dubbed ‘Saitama’ was uncovered by security firm Malwarebytes in a weaponized document, possibly targeted towards the Jordan government. This Saitama implant uses DNS as its sole Command and Control channel and utilizes long sleep times and (sub)domain randomization to evade detection.

DNS 66
article thumbnail

GO#WEBBFUSCATOR campaign hides malware in NASA’s James Webb Space Telescope image

Security Affairs

Upon opening the document, a malicious template file is downloaded and saved on the system. At the time of publication, this particular file is undetected by all antivirus vendors according to VirusTotal” The Base64 encoded payload, once decrypted, is a Windows 64-bit executable (1.7MB) called “msdllupdate.exe.”.

Malware 82
Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

article thumbnail

Retailer Orvis.com Leaked Hundreds of Internal Passwords on Pastebin

Krebs on Security

Reached for comment about the source of the document, Orvis spokesperson Tucker Kimball said it was only available for a day before the company had it removed from Pastebin. DNS controls. Encryption certificates. “We are leveraging our existing security tools to conduct an investigation to determine how this occurred.”

Retail 180
article thumbnail

Calling Home, Get Your Callbacks Through RBI

Security Boulevard

RBI solutions typically allow the configuration of file upload and download profiles, restricting the types of files that can be submitted or retrieved from websites based on multiple factors such as file extension, size, entropy/encryption of data, signatures, site reputation, and more. This can be due to encryption or even size.

DNS 64
article thumbnail

IT threat evolution Q3 2023

SecureList

For most implants, the threat actor uses similar implementations of DLL hijacking (often associated with ShadowPad malware) and memory injection techniques, along with the use of RC4 encryption to hide the payload and evade detection. libssl.dll or libcurl.dll was statically linked to implants to implement encrypted C2 communications.

Malware 90
article thumbnail

StripedFly: Perennially flying under the radar

SecureList

It comes equipped with a built-in TOR network tunnel for communication with command servers, along with update and delivery functionality through trusted services such as GitLab, GitHub, and Bitbucket, all using custom encrypted archives. The malware executable file is placed in /tmp directory with a random name. Record the microphone input.

Malware 106
article thumbnail

Why We Still Haven’t Learned From the Target Data Breach a Decade Later

Security Boulevard

Most of these steps could’ve been blocked with the aid of DNS protection. This document revealed Microsoft System Center as Target’s endpoint and point of sale (POS) management tool. It’s in this documentation that they found the details regarding the HVAC companies used by Target.