Classe: Trojan-Downloader
Programmes classés comme Trojan-Downloader télécharger et installer de nouvelles versions de programmes malveillants, y compris les chevaux de Troie et AdWare, sur les ordinateurs des victimes. Une fois téléchargés sur Internet, les programmes sont lancés ou inclus dans une liste de programmes qui s'exécuteront automatiquement au démarrage du système d'exploitation. Les informations sur les noms et les emplacements des programmes téléchargés se trouvent dans le code cheval de Troie ou sont téléchargés par le cheval de Troie à partir d'une ressource Internet (généralement une page Web). Ce type de programme malveillant est fréquemment utilisé dans l'infection initiale des visiteurs de sites Web qui contiennent des exploits.Plus d'informations
Plateforme: MSExcel
Microsoft Excel (MS Excel) est un tableur populaire et fait partie de la suite de productivité Microsoft Office. Les fichiers Excel ont des extensions .xls ou .xlsx.Famille: Trojan-Downloader.MSExcel.Agent
No family descriptionExamples
77D47E423DD29CD3FCCA93A4C5CF7D53Tactics and Techniques: Mitre*
TA0001
Initial Access
The adversary is trying to get into your network.
Initial Access consists of techniques that use various entry vectors to gain their initial foothold within a network. Techniques used to gain a foothold include targeted spearphishing and exploiting weaknesses on public-facing web servers. Footholds gained through initial access may allow for continued access, like valid accounts and use of external remote services, or may be limited-use due to changing passwords.
Initial Access consists of techniques that use various entry vectors to gain their initial foothold within a network. Techniques used to gain a foothold include targeted spearphishing and exploiting weaknesses on public-facing web servers. Footholds gained through initial access may allow for continued access, like valid accounts and use of external remote services, or may be limited-use due to changing passwords.
T1566.001
Phishing: Spearphishing Attachment
Adversaries may send spearphishing emails with a malicious attachment in an attempt to gain access to victim systems. Spearphishing attachment is a specific variant of spearphishing. Spearphishing attachment is different from other forms of spearphishing in that it employs the use of malware attached to an email. All forms of spearphishing are electronically delivered social engineering targeted at a specific individual, company, or industry. In this scenario, adversaries attach a file to the spearphishing email and usually rely upon User Execution to gain execution. Spearphishing may also involve social engineering techniques, such as posing as a trusted source.
There are many options for the attachment such as Microsoft Office documents, executables, PDFs, or archived files. Upon opening the attachment (and potentially clicking past protections), the adversary's payload exploits a vulnerability or directly executes on the user's system. The text of the spearphishing email usually tries to give a plausible reason why the file should be opened, and may explain how to bypass system protections in order to do so. The email may also contain instructions on how to decrypt an attachment, such as a zip file password, in order to evade email boundary defenses. Adversaries frequently manipulate file extensions and icons in order to make attached executables appear to be document files, or files exploiting one application appear to be a file for a different one.
There are many options for the attachment such as Microsoft Office documents, executables, PDFs, or archived files. Upon opening the attachment (and potentially clicking past protections), the adversary's payload exploits a vulnerability or directly executes on the user's system. The text of the spearphishing email usually tries to give a plausible reason why the file should be opened, and may explain how to bypass system protections in order to do so. The email may also contain instructions on how to decrypt an attachment, such as a zip file password, in order to evade email boundary defenses. Adversaries frequently manipulate file extensions and icons in order to make attached executables appear to be document files, or files exploiting one application appear to be a file for a different one.
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