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t1127
trusted developer utilities proxy execution
null
monitor for abnormal presence of these or other utilities that enable proxy execution that are typically used for development debugging and reverse engineering on a system that is not used for these purposes may be suspicious
t1127
trusted developer utilities proxy execution
null
process process creation command command execution
t1127
trusted developer utilities proxy execution
null
there are many utilities used for software development related tasks that can be used to execute code in various forms to assist in development debugging and reverse engineering
t1127
trusted developer utilities proxy execution
null
use process monitoring to monitor the execution and arguments of from developer utilities that may be abused
t1129
shared modules
null
adversaries may execute malicious payloads via loading shared modules
t1129
shared modules
null
correlation of other events with behavior surrounding module loads using api monitoring and suspicious dlls written to disk will provide additional context to an event that may assist in determining if it is due to malicious behavior
t1129
shared modules
null
legitimate software will likely only need to load routine bundled dll modules or windows system dlls such that deviation from known module loads may be suspicious
t1129
shared modules
null
limiting dll module loads to %systemroot% and %programfiles% directories will protect against module loads from unsafe paths
t1129
shared modules
null
monitoring dll module loads may generate a significant amount of data and may not be directly useful for defense unless collected under specific circumstances since benign use of windows modules load functions are common and may be difficult to distinguish from malicious behavior
t1129
shared modules
null
process os api execution module module load
t1129
shared modules
null
the windows module loader can be instructed to load dlls from arbitrary local paths and arbitrary universal naming convention unc network paths
t1132
data encoding
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a client sending significantly more data than it receives from a server
t1132
data encoding
null
adversaries may encode data to make the content of command and control traffic more difficult to detect
t1132
data encoding
null
analyze network data for uncommon data flows e
t1132
data encoding
null
analyze packet contents to detect communications that do not follow the expected protocol behavior for the port that is being used
t1132
data encoding
null
citation university of birmingham c2
t1132
data encoding
null
command and control c2 information can be encoded using a standard data encoding system
t1132
data encoding
null
network traffic network traffic content
t1132
data encoding
null
processes utilizing the network that do not normally have network communication or have never been seen before are suspicious
t1133
external remote services
null
adversaries may leverage external facing remote services to initially access andor persist within a network
t1133
external remote services
null
application log application log content logon session logon session metadata network traffic network traffic flow
t1133
external remote services
null
collect authentication logs and analyze for unusual access patterns windows of activity and access outside of normal business hours
t1133
external remote services
null
follow best practices for detecting adversary use of valid accountst1078 for authenticating to remote services
t1133
external remote services
null
remote services such as vpns citrix and other access mechanisms allow users to connect to internal enterprise network resources from external locations
t1133
external remote services
null
when authentication is not required to access an exposed remote service monitor for follow on activities such as anomalous external use of the exposed api or application
t1134
access token manipulation
null
logonuser citation microsoft logonuser duplicatetokenexcitation microsoft duplicatetokenex and impersonateloggedonusercitation microsoft impersonateloggedonuser
t1134
access token manipulation
null
adversaries may modify access tokens to operate under a different user or system security context to perform actions and bypass access controls
t1134
access token manipulation
null
citation blackhat atkinson winchester token manipulation look for inconsistencies between the various fields that store ppid information such as the event header process id from data collected via event tracing for windows etw creator process idname from windows event logs and the processid and parentprocessid which a...
t1134
access token manipulation
null
citation microsoft command line logging if an adversary is using a payload that calls the windows token apis directly analysts can detect token manipulation only through careful analysis of user network activity examination of running processes and correlation with other endpoint and network behavior
t1134
access token manipulation
null
detailed command line logging is not enabled by default in windows
t1134
access token manipulation
null
if an adversary is using a standard command line shell analysts can detect token manipulation by auditing command line activity
t1134
access token manipulation
null
please see the referenced windows api pages for more information
t1134
access token manipulation
null
process process creation process process metadata process os api execution user account user account metadata active directory active directory object modification command command execution
t1134
access token manipulation
null
query systems for process and thread token information and look for inconsistencies such as user owns processes impersonating the local system account
t1134
access token manipulation
null
specifically analysts should look for use of the runas command
t1134
access token manipulation
null
the etw provided event header process id identifies the actual parent process
t1134
access token manipulation
null
there are many windows api calls a payload can take advantage of to manipulate access tokens e
t1134
access token manipulation
null
windows uses access tokens to determine the ownership of a running process
t1135
network share discovery
null
adversaries may look for folders and drives shared on remote systems as a means of identifying sources of information to gather as a precursor for collection and to identify potential systems of interest for lateral movement
t1135
network share discovery
null
data and events should not be viewed in isolation but as part of a chain of behavior that could lead to other activities such as lateral movement based on the information obtained
t1135
network share discovery
null
information may also be acquired through windows system management tools such as windows management instrumentationt1047 and powershellt1059
t1135
network share discovery
null
monitor processes and command line arguments for actions that could be taken to gather system and network information
t1135
network share discovery
null
networks often contain shared network drives and folders that enable users to access file directories on various systems across a network
t1135
network share discovery
null
normal benign system and network events related to legitimate remote system discovery may be uncommon depending on the environment and how they are used
t1135
network share discovery
null
process process creation command command execution process os api execution
t1135
network share discovery
null
remote access tools with built in features may interact directly with the windows api to gather information
t1135
network share discovery
null
system and network discovery techniques normally occur throughout an operation as an adversary learns the environment
t1136
create account
null
adversaries may create an account to maintain access to victim systems
t1136
create account
null
citation microsoft user creation event perform regular audits of domain and local system accounts to detect suspicious accounts that may have been created by an adversary
t1136
create account
null
collect data on account creation within a network
t1136
create account
null
collect usage logs from cloud administrator accounts to identify unusual activity in the creation of new accounts and assignment of roles to those accounts
t1136
create account
null
event id 4720 is generated when a user account is created on a windows system and domain controller
t1136
create account
null
monitor for accounts assigned to admin roles that go over a certain threshold of known admins
t1136
create account
null
monitor for processes and command line parameters associated with account creation such as net user or useradd
t1136
create account
null
user account user account creation process process creation command command execution
t1136
create account
null
with a sufficient level of access creating such accounts may be used to establish secondary credentialed access that do not require persistent remote access tools to be deployed on the system
t1137
office application startup
null
adversaries may leverage microsoft office based applications for persistence between startups
t1137
office application startup
null
citation crowdstrike outlook formscitation outlook today home page microsoft has released a powershell script to safely gather mail forwarding rules and custom forms in your mail environment as well as steps to interpret the output
t1137
office application startup
null
citation microsoft detect outlook forms sensepost whose tool rulers0358 can be used to carry out malicious rules forms and homepage attacks has released a tool to detect ruler usage
t1137
office application startup
null
citation sensepost notruler
t1137
office application startup
null
collect events related to registry key creation and modification for keys that could be used for office based persistence
t1137
office application startup
null
collect process execution information including process ids pid and parent process ids ppid and look for abnormal chains of activity resulting from office processes
t1137
office application startup
null
exe is the parent process for suspicious processes and activity relating to other adversarial techniques then it could indicate that the application was used maliciously
t1137
office application startup
null
if winword
t1137
office application startup
null
many office related persistence mechanisms require changes to the registry and for binaries files or scripts to be written to disk or existing files modified to include malicious scripts
t1137
office application startup
null
microsoft office is a fairly common application suite on windows based operating systems within an enterprise network
t1137
office application startup
null
non standard process execution trees may also indicate suspicious or malicious behavior
t1137
office application startup
null
process process creation command command execution windows registry windows registry key creation windows registry windows registry key modification file file creation file file modification module module load application log application log content
t1140
deobfuscatedecode files or information
null
adversaries may use obfuscated files or informationt1027 to hide artifacts of an intrusion from analysis
t1140
deobfuscatedecode files or information
null
detecting the action of deobfuscating or decoding files or information may be difficult depending on the implementation
t1140
deobfuscatedecode files or information
null
if scripts are used then collecting the scripts for analysis may be necessary
t1140
deobfuscatedecode files or information
null
if the functionality is contained within malware and uses the windows api then attempting to detect malicious behavior before or after the action may yield better results than attempting to perform analysis on loaded libraries or api calls
t1140
deobfuscatedecode files or information
null
monitor the execution file paths and command line arguments for common archive file applications and extensions such as those for zip and rar archive tools and correlate with other suspicious behavior to reduce false positives from normal user and administrator behavior
t1140
deobfuscatedecode files or information
null
perform process and command line monitoring to detect potentially malicious behavior related to scripts and system utilities such as certutils0160
t1140
deobfuscatedecode files or information
null
process process creation file file modification script script execution
t1140
deobfuscatedecode files or information
null
they may require separate mechanisms to decode or deobfuscate that information depending on how they intend to use it
t1176
browser extensions
null
additionally all installed extensions maintain a plist file in the librarymanaged preferencesusername directory
t1176
browser extensions
null
adversaries may abuse internet browser extensions to establish persistent access to victim systems
t1176
browser extensions
null
browser extensions or plugins are small programs that can add functionality and customize aspects of internet browsers
t1176
browser extensions
null
citation courier chrome extensions mac os
t1176
browser extensions
null
command command execution process process creation network traffic network connection creation windows registry windows registry key creation file file creation
t1176
browser extensions
null
ensure all listed files are in alignment with approved extensions
t1176
browser extensions
null
however this may prove to be a difficult way of initially detecting a malicious extension depending on the nature and volume of the traffic it generates
t1176
browser extensions
null
inventory and monitor browser extension installations that deviate from normal expected and benign extensions
t1176
browser extensions
null
monitor for any new items written to the registry or pe files written to disk
t1176
browser extensions
null
on mac os monitor the command line for usage of the profiles tool such as profiles install type=configuration
t1176
browser extensions
null
process and network monitoring can be used to detect browsers communicating with a c2 server
t1176
browser extensions
null
that may correlate with browser extension installation
t1185
browser session hijacking
null
adversaries may take advantage of security vulnerabilities and inherent functionality in browser software to change content modify user behaviors and intercept information as part of various browser session hijacking techniques
t1185
browser session hijacking
null
authentication logs can be used to audit logins to specific web applications but determining malicious logins versus benign logins may be difficult if activity matches typical user behavior
t1185
browser session hijacking
null
citation wikipedia man in the browser a specific example is when an adversary injects software into a browser that allows them to inherit cookies http sessions and ssl client certificates of a user then use the browser as a way to pivot into an authenticated intranet
t1185
browser session hijacking
null
monitor for process injectiont1055 against browser applications
t1185
browser session hijacking
null
new processes may not be created and no additional software dropped to disk
t1185
browser session hijacking
null
process process modification process process access logon session logon session creation
t1185
browser session hijacking
null
this may be a difficult technique to detect because adversary traffic may be masked by normal user traffic
t1187
forced authentication
null
adversaries may gather credential material by invoking or forcing a user to automatically provide authentication information through a mechanism in which they can intercept
t1187
forced authentication
null
baseline smb traffic
t1187
forced authentication
null
citation us cert apt energy oct 2017
t1187
forced authentication
null
file file access file file creation file file modification network traffic network traffic content network traffic network traffic flow
t1187
forced authentication
null
for internal traffic monitor the workstation to workstation unusual vs