Malware

Pierluigi Paganini March 11, 2019
STOP ransomware encrypts files and steals victim’s data

Experts observed the STOP ransomware installing the Azorult password-stealing Trojan to steal account credentials, cryptocurrency wallets, and more. The STOP ransomware made the headlines because it is installing password-stealing Trojans on the victims’ machines. Experts observed the ransomware also installing the dreaded Azorult password-stealing Trojan on victim’s machine to steal account credentials, cryptocurrency wallets, documents […]

Pierluigi Paganini March 10, 2019
Jackson County paid $400,000 to crooks after ransomare attack

Ransomware threat makes the headlines again, this time an attack hit the computers of Jackson County, Georgia, paralyzing the government activity. Computers of Jackson County, Georgia, were infected with ransomware that paralyzed the government activity until officials decided to pay a $400,000 ransom to decrypt the files. “The Jackson County government paid online criminals about […]

Pierluigi Paganini March 09, 2019
SLUB Backdoor leverages GitHub and Slack in targeted attacks

Malware researchers from Trend Micro have spotted a new piece of malware dubbed SLUB that leverages GitHub and Slack for C&C communications. Malware researchers at Trend Micro have spotted a new backdoor dubbed SLUB that abuse GitHub and Slack for command and control (C&C) communications. According to the experts, the SLUB backdoor (Backdoor.Win32.SLUB.A) was only […]

Pierluigi Paganini March 08, 2019
Evading AV with JavaScript Obfuscation

A few days ago, Cybaze-Yoroi ZLAB researchers spotted a suspicious JavaScript file that implemented several techniques to evade detection of all AV solutions. Introduction A few days ago, Cybaze-Yoroi ZLAB researchers spotted a suspicious JavaScript file needing further attention: it leveraged several techniques in order to evade all AV detection and no one of the […]

Pierluigi Paganini March 07, 2019
StealthWorker Malware Uses Windows, Linux Bots to Hack Websites

Security experts at FortiGuard uncovered a new malware campaign aimed at delivering the StealthWorker brute-force malware. The malicious code targets both Windows and Linux systems, compromised systems are used to carry out brute force attacks along with other infected systems. The malicious code was first discovered by Malwarebytes at the end of February and tracked […]

Pierluigi Paganini March 06, 2019
Cybaz-Yoroi ZLAB shed the light on Op. ‘Pistacchietto’: An Italian Job

In the past weeks, a new strange campaign emerged in the cyber threat Italian landscape, it has been tracked as “Operation Pistacchietto.” Introduction In the past weeks, a new strange campaign emerged in the Italian landscape. It has been baptized “Operation Pistacchietto” from a username extracted from a Github account used to serve some part […]

Pierluigi Paganini March 06, 2019
[SI-LAB] #OpJerusalem 2019 – JCry ransomware is now infecting Windows users

Over the last few days, a new ransomware campaign infected several users around the world as part of the #OpJerusalem campaign. SI-LAB analyzed this malware and noticed that it does not use sophisticated techniques. Criminals used UPX packer to protect malware code written in Go and a RSA public certificate is hardcoded inside malware to […]

Pierluigi Paganini March 04, 2019
Experts collect more evidence that link Op ‘Sharpshooter’ to North Korea

Security researchers at McAfee have linked the Op. Sharpshooter with the North Korea-linked Lazarus APT group after analyzing code from a command and control (C2) server. Security experts at McAfee analyzed the code of a C2 server involved in the cyber espionage campaign tracked as Op. Sharpshooter and linked it with the North Korea-linked APT […]

Pierluigi Paganini March 04, 2019
Necurs Botnet adopts a new strategy to evade detection

The Necurs Botnet continues to evolve, a new strategy aims at hiding in the shadows, and leverages new payloads to recruits new bots. Necurs botnet is currently the second largest spam botnet, it has been active since at least 2012 and was involved in massive campaigns spreading malware such as the Locky ransomware, the Scarab ransomware, […]

Pierluigi Paganini March 02, 2019
[SI-LAB] FlawedAmmyy Leveraging Undetected XLM Macros as an Infection Vehicle

SI-LAB captured a piece of the FlawedAmmyy malware that leverages undetected XLM macros as an Infection Vehicle to compromise user’s devices. In February 2019, SI-LAB captured multiple samples of phishing campaigns using an Office Excel document carrying a malicious Excel 4.0 macro, also known as XLM macro, and used to download and execute a final […]