Classe: Email-Worm
Email-Worms propagation par e-mail. Le ver envoie une copie de lui-même en pièce jointe à un message électronique ou un lien vers son fichier sur une ressource réseau (par exemple, une URL vers un fichier infecté sur un site Web compromis ou un site Web appartenant à un pirate). Dans le premier cas, le code du ver est activé lorsque la pièce jointe infectée est ouverte (lancée). Dans le second cas, le code est activé lorsque le lien vers le fichier infecté est ouvert. Dans les deux cas, le résultat est le même: le code du ver est activé. Email-Worms utilise une gamme de méthodes pour envoyer des emails infectés. Les plus courantes sont: l'utilisation d'une connexion directe à un serveur SMTP à l'aide du répertoire de messagerie intégré dans le code du ver en utilisant les services MS Outlook à l'aide des fonctions Windows MAPI. Email-Worms utilisent un certain nombre de sources différentes pour trouver les adresses email auxquelles les emails infectés seront envoyés: le carnet d'adresses dans MS Outlook une base de données d'adresses WAB .txt fichiers stockés sur le disque dur: le ver peut identifier les chaînes dans les fichiers texte Les e-mails adressent des e-mails dans la boîte de réception (certains e-mails peuvent même répondre aux e-mails trouvés dans la boîte de réception) De nombreux vers de messagerie utilisent plus d'une des sources répertoriées ci-dessus. Il existe également d'autres sources d'adresses électroniques, telles que les carnets d'adresses associés aux services de messagerie Web.Plus d'informations
Plateforme: Win32
Win32 est une API sur les systèmes d'exploitation Windows NT (Windows XP, Windows 7, etc.) qui prend en charge l'exécution des applications 32 bits. L'une des plateformes de programmation les plus répandues au monde.Famille: Email-Worm.Win32.Sobig
No family descriptionExamples
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Tactics and Techniques: Mitre*
TA0002
Execution
The adversary is trying to run malicious code. Execution consists of techniques that result in adversary-controlled code running on a local or remote system. Techniques that run malicious code are often paired with techniques from all other tactics to achieve broader goals, like exploring a network or stealing data. For example, an adversary might use a remote access tool to run a PowerShell script that does Remote System Discovery.
T1204.002
Malicious File
An adversary may rely upon a user opening a malicious file in order to gain execution. Users may be subjected to social engineering to get them to open a file that will lead to code execution. This user action will typically be observed as follow-on behavior from Spearphishing Attachment. Adversaries may use several types of files that require a user to execute them, including .doc, .pdf, .xls, .rtf, .scr, .exe, .lnk, .pif, .cpl, and .reg.
TA0003
Persistence
The adversary is trying to maintain their foothold. Persistence consists of techniques that adversaries use to keep access to systems across restarts, changed credentials, and other interruptions that could cut off their access. Techniques used for persistence include any access, action, or configuration changes that let them maintain their foothold on systems, such as replacing or hijacking legitimate code or adding startup code.
T1547.001
Registry Run Keys / Startup Folder
Adversaries may achieve persistence by adding a program to a startup folder or referencing it with a Registry run key. Adding an entry to the "run keys" in the Registry or startup folder will cause the program referenced to be executed when a user logs in. These programs will be executed under the context of the user and will have the account's associated permissions level.
TA0004
Privilege Escalation
The adversary is trying to gain higher-level permissions. Privilege Escalation consists of techniques that adversaries use to gain higher-level permissions on a system or network. Adversaries can often enter and explore a network with unprivileged access but require elevated permissions to follow through on their objectives. Common approaches are to take advantage of system weaknesses, misconfigurations, and vulnerabilities. Examples of elevated access include: SYSTEM/root level, local administrator, user account with admin-like access, user accounts with access to specific system or perform specific function. These techniques often overlap with Persistence techniques, as OS features that let an adversary persist can execute in an elevated context.
T1547.001
Registry Run Keys / Startup Folder
Adversaries may achieve persistence by adding a program to a startup folder or referencing it with a Registry run key. Adding an entry to the "run keys" in the Registry or startup folder will cause the program referenced to be executed when a user logs in. These programs will be executed under the context of the user and will have the account's associated permissions level.
TA0005
Defense Evasion
The adversary is trying to avoid being detected. Defense Evasion consists of techniques that adversaries use to avoid detection throughout their compromise. Techniques used for defense evasion include uninstalling/disabling security software or obfuscating/encrypting data and scripts. Adversaries also leverage and abuse trusted processes to hide and masquerade their malware. Other tactics' techniques are cross-listed here when those techniques include the added benefit of subverting defenses.
T1036.008
Masquerade File Type
Adversaries may masquerade malicious payloads as legitimate files through changes to the payload's formatting, including the file’s signature, extension, icon, and contents. Various file types have a typical standard format, including how they are encoded and organized. For example, a file’s signature (also known as header or magic bytes) is the beginning bytes of a file and is often used to identify the file’s type. For example, the header of a JPEG file, is
0xFF 0xD8 and the file extension is either `.JPE`, `.JPEG` or `.JPG`. T1112
Modify Registry
Adversaries may interact with the Windows Registry as part of a variety of other techniques to aid in defense evasion, persistence, and execution.
T1497.003
Time Based Evasion
Adversaries may employ various time-based methods to detect and avoid virtualization and analysis environments. This may include enumerating time-based properties, such as uptime or the system clock, as well as the use of timers or other triggers to avoid a virtual machine environment (VME) or sandbox, specifically those that are automated or only operate for a limited amount of time.
TA0007
Discovery
The adversary is trying to figure out your environment. Discovery consists of techniques an adversary may use to gain knowledge about the system and internal network. These techniques help adversaries observe the environment and orient themselves before deciding how to act. They also allow adversaries to explore what they can control and what's around their entry point in order to discover how it could benefit their current objective. Native operating system tools are often used toward this post-compromise information-gathering objective.
T1497.003
Time Based Evasion
Adversaries may employ various time-based methods to detect and avoid virtualization and analysis environments. This may include enumerating time-based properties, such as uptime or the system clock, as well as the use of timers or other triggers to avoid a virtual machine environment (VME) or sandbox, specifically those that are automated or only operate for a limited amount of time.
* © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.