From December 2023 to the present, QiAnXin Threat Intelligence Center observed that a ransomware written in rust language is very active on the Chinese Internet, and a large number of machines in China have been ransomed, with up to more than 20 victimized units only in the terminals of government and enterprises, which the researchers call Rast ransomware.
After a long time of tracking, QiAnXin Threat Intelligence Center have captured three versions of Rast ransomware, and the versions are still iterating. rast ransomware has a very special logic: after the ransomware is completed, it will upload the machine name and unique identifier of the local machine to the remote mysql database. Through reverse analysis the research team got the mysql database account password and statistics of victims in the database, and found that in just ten months more than 6,800 terminals were controlled.
Read more…
Source: QiAnXin Threat Intelligence Center
Related:
- OpenBSD Hit with Authentication, LPE Bugs
December 5, 2019
An authentication bypass and three local privilege-escalation (LPE) bugs have been uncovered in OpenBSD, the Unix-like open-source operating system known for its security protections. The most severe of the vulnerabilities is the bypass (CVE-2019-19521), which is remotely exploitable. OpenBSD uses BSD authentication, which enables the use of passwords, S/Key challenge-and-response authentication and Yubico YubiKey tokens. In each ...
- New vulnerability lets attackers sniff or hijack VPN connections
December 5, 2019
Academics have disclosed this week a security flaw impacting Linux, Android, macOS, and other Unix-based operating systems that allows an attacker to sniff, hijack, and tamper with VPN-tunneled connections. The vulnerability — tracked as CVE-2019-14899 — resides in the networking stacks of multiple Unix-based operating systems, and more specifically, in how the operating systems reply to ...
- xHunt Actor’s Cheat Sheet
December 4, 2019
Unit42 has been researching the xHunt attack campaign on Kuwaiti organizations for several months. Recently, we found evidence that the developers who created the Sakabota tool, which was previously discussed in the xHunt campaign, had carried out two sets of testing activities in July and August 2018 on Sakabota in an attempt to evade detection. These testing ...
- APAC’s Compromised Domains Fuel Emotet Campaign
December 4, 2019
Discovered in 2014, Emotet is one of the most prolific malware families, infecting computer systems globally through its mass campaigns of spam email that delivers malware (AKA malspam). These campaigns have been widely documented by many organizations, including how Emotet evolved from being a banking Trojan, to a malware loader with modular functionalities. The modular functionality ...
- APT review: what the world’s threat actors got up to in 2019
December 4, 2019
What were the most interesting developments in terms of APT activity during the year and what can we learn from them? This is not an easy question to answer, because researchers have only partial visibility and it´s impossible to fully understand the motivation for some attacks or the developments behind them. However, let´s try to approach ...
- Obfuscation Tools Found in the Capesand Exploit Kit Possibly Used in “KurdishCoder” Campaign
December 4, 2019
In November 2019, Trend Micro published a blog analyzing an exploit kit we named Capesand that exploited Adobe Flash and Microsoft Internet Explorer flaws. During our analysis of the indicators of compromise (IoCs) in the deployed samples that were infecting the victim’s machines, we noticed some interesting characteristics: notably that these samples were making use of ...

