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Class | Trojan |
Platform | Win32 |
Family | Shelma |
Full name | HEUR:Trojan.Win32.Shelma.c |
Examples |
5860CF9BB6C165EB2B686A894E654C96 B96D8F76BDF2AFE7B6074A752631E11B 79761D295407BE9C8725FF94152B15B2 9862A6343F20D3F0A4F7F709E4C4FA00 28E8DD032A2FC91549026EECCE0E471B |
Updated at | 2024-01-18 00:45:45 |
Tactics & techniques MITRE* |
TA0002 ExecutionThe 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. T1203 Exploitation for Client ExecutionAdversaries may exploit software vulnerabilities in client applications to execute code. Vulnerabilities can exist in software due to unsecure coding practices that can lead to unanticipated behavior. Adversaries can take advantage of certain vulnerabilities through targeted exploitation for the purpose of arbitrary code execution. Oftentimes the most valuable exploits to an offensive toolkit are those that can be used to obtain code execution on a remote system because they can be used to gain access to that system. Users will expect to see files related to the applications they commonly used to do work, so they are a useful target for exploit research and development because of their high utility.
* © 2024 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.
Several types exist: ### Browser-based Exploitation Web browsers are a common target through Drive-by Compromise and Spearphishing Link. Endpoint systems may be compromised through normal web browsing or from certain users being targeted by links in spearphishing emails to adversary controlled sites used to exploit the web browser. These often do not require an action by the user for the exploit to be executed. ### Office Applications Common office and productivity applications such as Microsoft Office are also targeted through Phishing. Malicious files will be transmitted directly as attachments or through links to download them. These require the user to open the document or file for the exploit to run. ### Common Third-party Applications Other applications that are commonly seen or are part of the software deployed in a target network may also be used for exploitation. Applications such as Adobe Reader and Flash, which are common in enterprise environments, have been routinely targeted by adversaries attempting to gain access to systems. Depending on the software and nature of the vulnerability, some may be exploited in the browser or require the user to open a file. For instance, some Flash exploits have been delivered as objects within Microsoft Office documents. |
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