Hellminer.exe：加密挖礦惡意軟體分析，綜合移除指南

Hellminer.exe是消耗高CPU資源的惡意軟體，利用系統進行加密貨幣挖礦。它透過惡意廣告或植入式惡意軟體感染系統，並採用反虛擬機器和反調試措施。 Hellminer 透過登錄修改和 WMI 呼叫建立持久性，利用點對點命令伺服器網路來增強彈性。刪除需要使用反惡意軟體軟體進行徹底掃描，以消除惡意軟體及其備份。

Hellminer.exe: A Comprehensive Analysis of a Crypto-Mining Malware

Hellminer.exe：加密貨幣挖礦惡意軟體的綜合分析

Introduction

介紹

Hellminer.exe is a malicious software process that has been identified for its significant impact on system performance. This malware utilizes the host computer's resources to mine cryptocurrencies, primarily DarkCoin and Monero. Its presence can result in a noticeable decrease in system responsiveness and stability, as it allocates a substantial portion of the CPU's processing power to the mining process.

Hellminer.exe 是一個惡意軟體流程，已被確定對系統效能有重大影響。該惡意軟體利用主機的資源來挖掘加密貨幣，主要是 DarkCoin 和 Monero。它的存在可能會導致系統響應能力和穩定性顯著下降，因為它將 CPU 處理能力的很大一部分分配給了挖掘過程。

Nature of the Malware

惡意軟體的性質

Hellminer.exe is associated with a malicious coin miner, a type of malware designed to exploit the hardware of infected systems to generate cryptocurrency. The malware establishes vast networks of compromised computers, enabling hackers to maximize their profits. It consumes a significant amount of CPU power, typically up to 80%, to ensure optimal mining performance. This excessive resource utilization renders the affected system sluggish and inconvenient to use.

Hellminer.exe 與惡意硬幣挖礦程式相關，這是一種旨在利用受感染系統的硬體產生加密貨幣的惡意軟體。該惡意軟體建立了龐大的受感染電腦網絡，使駭客能夠最大化利潤。它會消耗大量的 CPU 功率（通常高達 80%），以確保最佳的挖礦效能。這種過度的資源利用導致受影響的系統運作緩慢且不方便使用。

Infiltration Methods

滲透方法

Hellminer.exe primarily infiltrates user systems through malvertising (malicious advertising) on the Internet or via dropper malware. Malvertising involves the distribution of malware through legitimate-looking websites or advertisements. Dropper malware serves as a delivery mechanism for other malicious payloads, including Hellminer.exe. It is important to note that these spreading methods are commonly employed by various types of malware, indicating a potential risk of multiple infections within the compromised system.

Hellminer.exe 主要透過網路上的惡意廣告（惡意廣告）或透過置入式惡意軟體滲透使用者係統。惡意廣告涉及透過看似合法的網站或廣告傳播惡意軟體。 Dropper 惡意軟體可作為其他惡意負載（包括 Hellminer.exe）的傳遞機制。值得注意的是，這些傳播方法通常被各種類型的惡意軟體所採用，這表明受感染系統內存在多重感染的潛在風險。

Technical Analysis

技術分析

Unlike other miners that rely on open-source mining software such as XMRig, Hellminer.exe appears to be written in Python, suggesting a private development. Upon launch, the malware initiates a series of anti-virtual machine (VM) and anti-debugging checks. It leverages Windows Management Instrumentation (WMI) to retrieve information about the CPU, searching for indications of virtualization. The malware then proceeds to enumerate services and processes, paying particular attention to traces of the VMware virtualization environment. This behavior suggests that the malware seeks to avoid detection in virtual environments commonly employed for malware analysis.

與其他依賴 XMRig 等開源挖礦軟體的礦工不同，Hellminer.exe 似乎是用 Python 編寫的，這表明是私人開發。啟動後，惡意軟體會啟動一系列反虛擬機器 (VM) 和反調試檢查。它利用 Windows Management Instrumentation (WMI) 檢索有關 CPU 的信息，搜尋虛擬化的跡象。然後，惡意軟體會繼續列舉服務和進程，特別關注 VMware 虛擬化環境的痕跡。此行為表示惡意軟體試圖避免在通常用於惡意軟體分析的虛擬環境中進行檢測。

Following these initial checks, the malware's primary payload is activated. However, the information gathered during the initial stage may also be used to configure the mining process or contribute to the system fingerprint, providing valuable insights to the malware operators.

在這些初步檢查之後，惡意軟體的主要有效負載被啟動。然而，在初始階段收集的資訊也可用於配置挖掘過程或貢獻系統指紋，為惡意軟體操作者提供有價值的見解。

Persistence Mechanisms

持久化機制

To maintain a persistent presence within the compromised system, Hellminer.exe manipulates the Windows registry through a series of commands. This manipulation enables the malware to start the Windows error reporting service, increasing its privileges and providing a disguise. Additionally, it alters network security policies and forces the WMI Adaptation Service to recursively launch the payload, ensuring continuous execution.

為了在受感染的系統中保持持久存在，Hellminer.exe 透過一系列命令操縱 Windows 登錄。這種操作使惡意軟體能夠啟動 Windows 錯誤報告服務，從而增加其權限並提供偽裝。此外，它還會更改網路安全策略並強制 WMI 適應服務遞歸啟動有效負載，以確保連續執行。

Command and Control Architecture

命令與控制架構

Unlike some malware miners, Hellminer.exe does not establish extensive command-and-control (C2) communication. After completing its initial tasks, it transmits a packet of system information to a command server, indicating its readiness. In response, the C2 server provides a configuration file containing details about the mining pool and IP address to connect to.

與某些惡意軟體挖礦程式不同，Hellminer.exe 不會建立廣泛的命令與控制 (C2) 通訊。完成初始任務後，它將系統資訊包傳送到命令伺服器，表示其已準備就緒。作為回應，C2 伺服器提供一個設定文件，其中包含有關礦池和要連接的 IP 位址的詳細資訊。

Notably, the command servers used by Hellminer.exe exhibit a peer-to-peer architecture. Instead of relying on a traditional C2 server model, the malware utilizes a network of infected computers as command servers. This network structure significantly increases the resilience of the botnet by preventing disruption through the compromise of a single command server.

值得注意的是，Hellminer.exe 使用的命令伺服器呈現出點對點架構。該惡意軟體不依賴傳統的 C2 伺服器模型，而是利用受感染電腦的網路作為命令伺服器。這種網路結構可防止單一命令伺服器受到破壞而造成破壞，從而顯著提高殭屍網路的彈性。

Removal Guide

拆除指南

Effective removal of Hellminer.exe requires the use of reputable anti-malware software. Such software employs scanning mechanisms to identify and quarantine malicious files and processes. GridinSoft Anti-Malware is a recommended solution that can effectively neutralize Hellminer.exe and its associated components. It is crucial to perform a comprehensive scan to ensure the complete eradication of the malware and any residual traces.

有效移除 Hellminer.exe 需要使用信譽良好的反惡意軟體軟體。此類軟體採用掃描機制來識別和隔離惡意檔案和進程。 GridinSoft Anti-Malware 是推薦的解決方案，可有效地中和 Hellminer.exe 及其相關元件。執行全面掃描以確保徹底根除惡意軟體和任何殘留痕跡至關重要。

Prevention and Mitigation

預防和緩解

The activity of miner malware is closely correlated with the fluctuations in cryptocurrency prices. As the value of cryptocurrencies rises, so does the prevalence of malware exploiting these digital assets. Malvertising remains a primary vector for the distribution of Hellminer.exe and other miner malware. To mitigate this threat, users should exercise caution when interacting with online advertisements, particularly those promoting free software or downloads. Scrutinizing the URL and avoiding websites with suspicious or unfamiliar addresses can help prevent malware infections.

礦工惡意軟體的活動與加密貨幣價格的波動密切相關。隨著加密貨幣價值的上升，利用這些數位資產的惡意軟體也越來越流行。惡意廣告仍然是傳播 Hellminer.exe 和其他礦工惡意軟體的主要媒介。為了減輕這種威脅，用戶在與線上廣告互動時應小心謹慎，尤其是宣傳免費軟體或下載的廣告。檢查 URL 並避開具有可疑或陌生地址的網站可以幫助防止惡意軟體感染。