YARA · Embee Research
EMBEERESEARCH_Win_Solarmarker_Stage2_Bytecodes_Dec_2023
Patterns observed in Solarmarker stage2 dll
- Author
- Matthew @ Embee_Research
- Date
- 2023-12-28
- Score / Quality
- 75 / 75
What this rule detects
Patterns observed in Solarmarker stage2 dll
Associated malware family: Solarmarker.
It defines 1 patterns (0 text, 1 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-solarmarker-stage2-bytecodes-dec-2023.yarDetection Rule License 1.1
rule EMBEERESEARCH_Win_Solarmarker_Stage2_Bytecodes_Dec_2023
{
meta:
= "Patterns observed in Solarmarker stage2 dll"
= "Matthew @ Embee_Research"
= "9aba6cdf-1491-579d-b4a7-fe229272015d"
= "2023-12-28"
= "2023-12-28"
= "https://github.com/embee-research/Yara-detection-rules/"
= "https://github.com/embee-research/Yara-detection-rules//blob/ac56d6f6fd2a30c8cb6e5c0455d6519210a8b0f4/Rules/win_solarmarker_stage2_bytecodes_dec_2023.yar#L1-L20"
= "N/A"
= "4a3b60496a793ee96a51fecf8690ef8312429a6b54d32f2a4424395c47b47fc8"
= "e0b2457491a8c2d50710aa343ad1957a76f83ceaf680165ffa0e287fe18abbd6"
= "8e50e5942f0029ffda1d9750f8cc8e004a2512e50b6a14c1619ae0b83477a944"
= 75
= 75
= ""
strings:
$s1 = {6F ?? ?? 00 0A 1F 20 2E ?? 02 7B ?? ?? 00 04 02 7B ?? ?? 00 04 6F ?? ?? 00 0A 1F 09 2E ?? 02 7B ?? ?? 00 04 02 7B ?? ?? 00 04 6F ?? ?? 00 0A 1F 0A 2E ?? 02 7B ?? ?? 00 04 02 7B ?? ?? 00 04 6F ?? ?? 00 0A 1F 0D 2E ?? 02 7B ?? ?? 00 04 02 7B ?? ?? 00 04 6F ?? ?? 00 0A 1F 0A }
condition:
$s1
}
Strings (1 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $s1 | hex | {6F ?? ?? 00 0A 1F 20 2E ?? 02 7B ?? ?? 00 04 02 7B ?? ?? 00 04 6F ?? ?? 00 0A 1F 09 2E ?? 02 7B ?? ?? 00 04 02 7B ?? ?? 00 04 6F ?? ?? 00 0A 1F 0A 2E ?? 02 7B … |
Condition
$s1In plain words (Heuristic)
- Pattern $s1 must be present.
Test this rule in your browser
Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.
Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.
Sample hashes
Hashes of samples the author lists in the rule's meta (look them up in your threat-intelligence platform).
- 4a3b60496a793ee96a51fecf8690ef8312429a6b54d32f2a4424395c47b47fc8
- e0b2457491a8c2d50710aa343ad1957a76f83ceaf680165ffa0e287fe18abbd6
Licence & attribution
Author: Matthew @ Embee_Research
Source repository: Embee Research @ ac56d6f6fd
Licence: Detection Rule License 1.1 (repository licence)
Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.
Rule id: 9aba6cdf-1491-579d-b4a7-fe229272015d
Related rules
- Suspicious / huntingEmbee Research· Matthew @ Embee_Research· 2023-09-10
- MalwareSEKOIA.IO Community· Sekoia.io· 2022-12-09
- MalwareSEKOIA.IO Community· Sekoia.io· 2022-12-09
- MalwareditekSHen detection· ditekSHen· 2020-11-06
- RUSSIANPANDA_Solarmarker_Loader_PS2EXEMetadata onlyMalwareRussianPanda· RussianPanda· 2024-01-04
- RUSSIANPANDA_SolardropperMetadata onlyMalwareRussianPanda· RussianPanda· 2023-06-22
- RUSSIANPANDA_Solarmarker_LoaderMetadata onlyMalwareRussianPanda· RussianPanda· 2024-01-04
- RUSSIANPANDA_Solarmarker_First_Stage_PayloadMetadata onlyMalwareRussianPanda· RussianPanda· 2024-01-30