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CAPEC-642: Replace Binaries

Attack Pattern ID: 642
Abstraction: Detailed
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+ Description
Adversaries know that certain binaries will be regularly executed as part of normal processing. If these binaries are not protected with the appropriate file system permissions, it could be possible to replace them with malware. This malware might be executed at higher system permission levels. A variation of this pattern is to discover self-extracting installation packages that unpack binaries to directories with weak file permissions which it does not clean up appropriately. These binaries can be replaced by malware, which can then be executed.
+ Typical Severity

High

+ Relationships
Section HelpThis table shows the other attack patterns and high level categories that are related to this attack pattern. These relationships are defined as ChildOf and ParentOf, and give insight to similar items that may exist at higher and lower levels of abstraction. In addition, relationships such as CanFollow, PeerOf, and CanAlsoBe are defined to show similar attack patterns that the user may want to explore.
NatureTypeIDName
ChildOfStandard Attack PatternStandard Attack Pattern - A standard level attack pattern in CAPEC is focused on a specific methodology or technique used in an attack. It is often seen as a singular piece of a fully executed attack. A standard attack pattern is meant to provide sufficient details to understand the specific technique and how it attempts to accomplish a desired goal. A standard level attack pattern is a specific type of a more abstract meta level attack pattern.17Using Malicious Files
Section HelpThis table shows the views that this attack pattern belongs to and top level categories within that view.
View NameTop Level Categories
Domains of AttackSoftware
Mechanisms of AttackSubvert Access Control
+ Prerequisites
The attacker must be able to place the malicious binary on the target machine.
+ Mitigations
Insure that binaries commonly used by the system have the correct file permissions. Set operating system policies that restrict privilege elevation of non-Administrators. Use auditing tools to observe changes to system services.
+ Example Instances
The installer for a previous version of Firefox would use a DLL maliciously placed in the default download directory instead of the existing DLL located elsewhere, probably due to DLL hijacking. This DLL would be run with administrator privileges if the installer has those privileges.
By default, the Windows screensaver application SCRNSAVE.exe leverages the scrnsave.scr Portable Executable (PE) file in C:\Windows\system32\. This value is set in the registry at HKEY_CURRENT_USER\Control Panel\Desktop, which can be modified by an adversary to instead point to a malicious program. This program would then run any time the SCRNSAVE.exe program is activated and with administrator privileges. An adversary may additionally modify other registry values within the same location to set the SCRNSAVE.exe program to run more frequently.
+ Taxonomy Mappings
Section HelpCAPEC mappings to ATT&CK techniques leverage an inheritance model to streamline and minimize direct CAPEC/ATT&CK mappings. Inheritance of a mapping is indicated by text stating that the parent CAPEC has relevant ATT&CK mappings. Note that the ATT&CK Enterprise Framework does not use an inheritance model as part of the mapping to CAPEC.
Relevant to the ATT&CK taxonomy mapping (also see parent)
Entry IDEntry Name
1505.005Server Software Component: Terminal Services DLL
1554Compromise Client Software Binary
1574.005Hijack Execution Flow:Executable Installer File Permissions Weakness

Relevant to the OWASP taxonomy mapping
Entry Name
Binary planting
+ Content History
Submissions
Submission DateSubmitterOrganization
2018-05-31
(Version 2.11)
CAPEC Content TeamThe MITRE Corporation
Modifications
Modification DateModifierOrganization
2019-04-04
(Version 3.1)
CAPEC Content TeamThe MITRE Corporation
Updated Example_Instances, Taxonomy_Mappings
2020-07-30
(Version 3.3)
CAPEC Content TeamThe MITRE Corporation
Updated Taxonomy_Mappings
2020-12-17
(Version 3.4)
CAPEC Content TeamThe MITRE Corporation
Updated Taxonomy_Mappings
2022-09-29
(Version 3.8)
CAPEC Content TeamThe MITRE Corporation
Updated Taxonomy_Mappings
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Page Last Updated or Reviewed: July 31, 2018
 

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