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be infected with malware
The system was infected with malware after a phishing email.
系统收到钓鱼邮件后感染了恶意软件。
恶意软件
先理解核心含义，再看它在真实句子里的用法。
恶意软件
malicious software designed to damage, disrupt, or gain unauthorized access to a computer system
The system was infected with malware after a phishing email.
系统收到钓鱼邮件后感染了恶意软件。
被设计成以恶意、不良方式运行的软件。
Software which has been designed to operate in a malicious, undesirable manner.
My computer slowed down because malware had infected several files.
我的电脑变慢了，因为恶意软件感染了几个文件。
Always update your software to protect against malware.
记得更新软件以防范恶意软件。
The company hired an expert to remove malware from its network.
公司请了一位专家来清除网络中的恶意软件。
The system was infected with malware after a phishing email.
系统收到钓鱼邮件后感染了恶意软件。
The antivirus software detected malware in the downloaded file.
该杀毒软件在下载的文件中检测到恶意软件。
malware 通常作不可数名词；复数形式 malwares 较少见。
Malware can steal passwords and slow down your computer.
恶意软件会窃取密码并拖慢你的电脑。
表示“一个恶意软件”时用 a piece of malware；通常不说 a malware。
A piece of malware was blocked before it could cause damage.
一个恶意软件在造成损害之前被拦截了。
Not this
I downloaded a malware from a website.
Use this
I downloaded malware from a website.
malware 是不可数名词，不能用不定冠词 a 修饰；表示“下载恶意软件”时应直接用 malware 作不可数名词。
Not this
There is malware in my computer.
Use this
There is malware on my computer.
表示程序、文件等存储在电脑中，介词用 on；in 表示在机箱内部等物理位置，不用于指软件内容。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
恶意软件攻击
The company suffered a malware attack that leaked customer data.
该公司遭受了恶意软件攻击，导致客户数据泄露。
恶意软件感染
Regular scans can prevent malware infection.
定期扫描可以预防恶意软件感染。
恶意软件防护
This antivirus program offers strong malware protection.
这款杀毒软件提供强大的恶意软件防护。
恶意软件清除
I used a dedicated tool for malware removal.
我用了一个专用工具来清除恶意软件。
恶意软件检测
The new system improves malware detection.
新系统改进了恶意软件检测。
Use malware naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记作：mal(坏) + ware(软件) = 坏软件，即恶意软件。
语域：neutral 常见场景：cybersecurity reports、technology news、IT documentation malware 多用于正式或技术性语境，如网络安全报告、技术新闻和官方文档；日常对话中比较少见，通常用 virus 等更通俗的词。
复数形式为 malwares。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.