12-July-2022
Welcome to the weekly threat detection update report from Stamus Networks. Each week, you will receive this email with a summary of the updates.
Current Stamus Threat Intelligence (STI) release version: 491
This week, in addition to daily ruleset and IOC updates, we provided Stamus Security Platform customers with the following improved defense(s):
Note: a "method" as referenced below, is a discrete detection vector for a given threat.
The following detections were added to your Stamus NDR this past week:
A Trojan horse or Trojan is a type of malware that is often disguised as legitimate software. Trojans can be employed by cyber-thieves and hackers trying to gain access to users' systems. Users are typically tricked by some form of social engineering into loading and executing Trojans on their systems. Once activated, Trojans can enable cyber-criminals to spy on you, steal your sensitive data, and gain backdoor access to your system. Kaspersky
Zegost - microsoft
IceXLoader is a commercial malware used to download and deploy additional malware on infected machines. The latest version is written in Nim, a relatively new language utilized by threat actors the past two years, most notably by the NimzaLoader variant of BazarLoader used by the TrickBot group. Fortinet
W32/Yunsip!tr.pws is classified as a password stealing trojan. Password Stealing Trojan searches the infected system for passwords and send them to the hacker. Malpedia
A Trojan horse or Trojan is a type of malware that is often disguised as legitimate software. Trojans can be employed by cyber-thieves and hackers trying to gain access to users' systems. Users are typically tricked by some form of social engineering into loading and executing Trojans on their systems. Once activated, Trojans can enable cyber-criminals to spy on you, steal your sensitive data, and gain backdoor access to your system. Kaspersky
Wacapew - microsoft |
According to Black Lotus Labs, ZuoRAT is a MIPS file compiled for SOHO routers that can enumerate a host and internal LAN, capture packets being transmitted over the infected device and perform person-in-the-middle attacks (DNS and HTTPS hijacking based on predefined rules). Malpedia
ZuoRAT - microsoft |
Panchan is written in Golang, and utilizes its built-in concurrency features to maximize spreadability and execute malware modules.
In addition to the “basic” SSH dictionary attack that is commonplace in most worms, this malware also harvests SSH keys to perform lateral movement. Akamai
Panchan - github |
The following detections were updated this past week with changes to kill chain phase(s) or MITRE ATT&CK tactic(s)/technique(s):
APT38 is a financially-motivated threat group that is backed by the North Korean regime. The group mainly targets banks and financial institutions and has targeted more than 16 organizations in at least 13 countries since at least 2014.
North Korean group definitions are known to have significant overlap, and the name Lazarus Group is known to encompass a broad range of activity. Some organizations use the name Lazarus Group to refer to any activity attributed to North Korea. Some organizations track North Korean clusters or groups such as Bluenoroff, APT37, and APT38 separately, while other organizations may track some activity associated with those group names by the name Lazarus Group. MITRE
APT17 is a China-based threat group that has conducted network intrusions against U.S. government entities, the defense industry, law firms, information technology companies, mining companies, and non-government organizations. MITRE
Cobalt Strike is a commercial, full-featured, penetration testing tool which bills itself as “adversary simulation software designed to execute targeted attacks and emulate the post-exploitation actions of advanced threat actors”. Cobalt Strike’s interactive post-exploit capabilities cover the full range of ATT&CK tactics, all executed within a single, integrated system.
In addition to its own capabilities, Cobalt Strike leverages the capabilities of other well-known tools such as Metasploit and Mimikatz. MITRE
Gamaredon Group is a threat group that has been active since at least 2013 and has targeted individuals likely involved in the Ukrainian government. The name Gamaredon Group comes from a misspelling of the word "Armageddon", which was detected in the adversary's early campaigns. MITRE
Trojan-Banker programs are designed to steal user account data relating to online banking systems, e-payment systems and plastic card systems. The data is then transmitted to the malicious user controlling the Trojan. Email, FTP, the web (including data in a request), or other methods may be used to transit the stolen data. Kaspersky
Joker is one of the most prominent malware families that continually targets Android devices. Despite awareness of this particular malware, it keeps finding its way into Google’s official application market by employing changes in its code, execution methods, or payload-retrieving techniques. This spyware is designed to steal SMS messages, contact lists, and device information along with silently signing up the victim for premium wireless application protocol (WAP) services. Zscaler
Malware of this family consists of Trojans that use anti-emulation, anti-debugging, and code obfuscation to prevent their analysis. Kaspersky
Remcos is a closed-source tool that is marketed as a remote control and surveillance software by a company called Breaking Security.
Remcos has been observed being used in malware campaigns.
Silent Librarian is a group that has targeted research and proprietary data at universities, government agencies, and private sector companies worldwide since at least 2013. Members of Silent Librarian are known to have been affiliated with the Iran-based Mabna Institute which has conducted cyber intrusions at the behest of the government of Iran, specifically the Islamic Revolutionary Guard Corps (IRGC).[ MITRE
Sliver is an open source, cross-platform adversary emulation/red team platform, it can be used by organizations of all sizes to perform security testing. Sliver's implants support C2 over Mutual TLS (mTLS), WireGuard, HTTP(S), and DNS. Implants are dynamically compiled with unique X.509 certificates signed by a per-instance certificate authority generated when you first run the binary. Github
Bisonal is a remote access trojan (RAT) that's part of the Tonto Team arsenal. The peculiarity of the RAT is that it's been in use for more than 10 years — this is an uncommon and long period for malware. Over the years, it has evolved and adapted mechanisms to avoid detection while keeping the core of its RAT the same. We identified specific functions here for more than six years. Talos
Again, the generic nature of this detection means that the Payloads performed by this group of trojans may be highly variable, and therefore difficult to describe specifically. This group of trojans has been observed to perform any, or all, of the following actions:
redirect Web traffic
- manipulate certain Windows or third-party applications including settings or configurations
- drop or install additional malicious programs
- download and run additional malicious programs
Please note that this list is not exhaustive.
Microsoft
A Trojan downloader is a type of Trojan horse that downloads and installs files, often malicious programs. A Trojan horse is a type of software that looks legitimate but can be malicious in nature. Sometimes these programs can be downloaded onto a device without the user’s knowledge or consent. A Trojan’s purpose is to damage, disrupt, steal, or generally inflict some other harm on your computer and devices. Norton
Malicious programs of this family secretly send information to the criminal from the user’s infected Android mobile device. Kaspersky
Stealer: The term info stealer is self-explanatory. This type of malware resides in an infected computer and gathers data in order to send it to the attacker. Typical targets are credentials used in online banking services, social media sites, emails, or FTP accounts.
Info stealers may use many methods of data acquisition. The most common are:
hooking browsers (and sometimes other applications) and stealing credentials that are typed by the user using web injection scripts that are adding extra fields to web forms and submitting information from them to a server owned by the attacker form grabbing (finding specific opened windows and stealing their content) keylogging stealing passwords saved in the system and cookies Modern info stealers are usually parts of botnets. Sometimes the target of attack and related events are configured remotely by the command sent from the Command and Control server (C&C). Malwarebytes
The following threat detection(s) were improved this past week with new or updated threat methods.
| Name of threat | New coverage | Total coverage | Last updated | ||||
|---|---|---|---|---|---|---|---|
| New Detection methods | Kill chain phases | Protocols involved | Detection methods | Kill chain phases | Protocols involved | ||
| APT38 | 3 | command and control | http, dns | 94 | command and control, delivery | dns, http, tcp, tls | 2022-07-07 |
| Bitter | 5 | command and control | tcp-pkt, http, dns | 32 | actions on objectives, command and control, delivery | dns, http, tcp, tcp-pkt | 2022-07-08 |
| Cobalt Strike | 2 | command and control | http, tcp | 366 | actions on objectives, command and control, delivery, exploitation | dns, http, smb, tcp, tls, udp | 2022-07-08 |
| Gamaredon | 1 | command and control | dns | 93 | actions on objectives, command and control, delivery | dns, http | 2022-07-08 |
| Hqwar | 1 | command and control | http | 26 | actions on objectives, command and control | dns, http, tls | 2022-07-09 |
| IceXLoader | 3 | command and control | http | 3 | command and control | http | 2022-07-06 |
| Joker | 1 | command and control | http | 19 | actions on objectives, command and control | ftp, http, tls | 2022-07-07 |
| Kryptik | 3 | command and control | http | 83 | actions on objectives, command and control, delivery | http, smtp, tcp, tcp-pkt, tls | 2022-07-08 |
| Panchan | 3 | command and control | tcp | 3 | command and control | tcp | 2022-07-06 |
| Remcos | 5 | command and control | tcp-pkt, tcp | 832 | command and control, delivery | dns, http, tcp, tcp-pkt | 2022-07-07 |
| Silent Librarian | 5 | command and control | tls | 18 | command and control | dns, tls | 2022-07-05 |
| Sliver Framework | 429 | command and control | tls | 432 | command and control | http, tls | 2022-07-08 |
| Tonto Team | 1 | command and control | http | 16 | command and control | dns, http, tcp | 2022-07-09 |
| Trojan Agent | 2 | actions on objectives, command and control | smtp, http | 340 | actions on objectives, command and control, delivery, installation | dns, http, ip, smtp, tcp, tcp-pkt, tcp-stream, udp | 2022-07-09 |
| Trojan Downloader | 1 | command and control | http | 195 | actions on objectives, command and control, delivery, installation | dns, http, tcp, tls, udp | 2022-07-08 |
| TrojanSpy-Android | 1 | command and control | dns | 356 | actions on objectives, command and control, delivery | dns, http, tcp, tls | 2022-07-06 |
| TrojanSpy-Generic | 2 | actions on objectives | http | 70 | actions on objectives, command and control, delivery | http, tcp, tcp-pkt, tls | 2022-07-09 |
| Wacapew | 4 | command and control | tls, http | 4 | command and control | tls, http | 2022-07-06 |
| Yunsip | 1 | actions on objectives | http | 3 | actions on objectives | http | 2022-07-06 |
| Zegost | 22 | command and control | tcp, http | 24 | command and control | tcp, http | 2022-07-06 |
| ZuoRAT | 6 | command and control, delivery | http | 6 | command and control, delivery | http | 2022-07-06 |
Technical support
Join the conversation on Discord
Follow us Twitter
Follow us on LinkedIn
Subscribe to our YouTube channel
Stamus Networks website
ABOUT STAMUS NETWORKS
Stamus Networks believes in a world where defenders are heroes, and a future where those they protect remain safe. As organizations face threats from well-funded adversaries, we relentlessly pursue solutions that make the defender’s job easier and more impactful. The global leader in Suricata-based network security solutions, Stamus Networks helps enterprise security teams know more, respond sooner and mitigate their risk with insights gathered from cloud and on-premise network activity. Our Stamus Security Platform combines the best of intrusion detection (IDS), network security monitoring (NSM), and network detection and response (NDR) systems into a single solution that exposes serious and imminent threats to critical assets and empowers rapid response.
© 2014-2024 Stamus Networks, Inc. All rights Reserved.
