Emerging Threathightest
Sofacy Trojan Loader Activity
Detects Trojan loader activity as used by APT28
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Launch
Florian Roth (Nextron Systems), Jonhnathan Ribeiro, oscd.communityCreated Thu Mar 01Updated Wed May 31ba778144-5e3d-40cf-8af9-e28fb1df1e202018
Emerging Threat
Active Threat
Developed to detect an active or emerging threat. Prioritize investigation of any alerts and correlate with threat intelligence.
Log Source
WindowsProcess Creation
ProductWindows← raw: windows
CategoryProcess Creation← raw: process_creation
Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.
Detection Logic
Detection Logic3 selectors
detection:
selection_path:
Image|endswith: '\rundll32.exe'
CommandLine|contains:
- '%LOCALAPPDATA%'
- '\AppData\Local\'
selection_extensions:
- CommandLine|contains: '.dat",'
- CommandLine|endswith:
- '.dll #1'
- '.dll" #1'
- '.dll",#1'
filter_main_exclude_temp:
CommandLine|contains: '\AppData\Local\Temp\'
condition: all of selection_* and not 1 of filter_main_*False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
MITRE ATT&CK
Sub-techniques
Groups
CAR Analytics
2013-10-002 · CAR 2013-10-002
Other
detection.emerging-threats
Rule Metadata
Rule ID
ba778144-5e3d-40cf-8af9-e28fb1df1e20
Status
test
Level
high
Type
Emerging Threat
Created
Thu Mar 01
Modified
Wed May 31
Path
rules-emerging-threats/2018/TA/APT28/proc_creation_win_apt_sofacy.yml
Raw Tags
attack.defense-evasionattack.executionattack.g0007attack.t1059.003attack.t1218.011car.2013-10-002detection.emerging-threats