YARA · SEKOIA.IO Community
SEKOIA_Infostealer_Win_Daolpu_Str
Finds Daolpu Stealer samples based on specific strings.
- Author
- Sekoia.io
- Date
- 2024-07-23
- Modified
- 2024-12-19
- Score / Quality
- 75 / 80
What this rule detects
Finds Daolpu Stealer samples based on specific strings.
Associated malware family: Daolpu.
Targets: Windows PE.
It defines 11 patterns (11 text, 0 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
infostealer-win-daolpu-str.yarDetection Rule License 1.1
rule SEKOIA_Infostealer_Win_Daolpu_Str : FILE
{
meta:
= "Finds Daolpu Stealer samples based on specific strings."
= "Sekoia.io"
= "dde1cf12-48d8-45b6-b453-b7196e6b1271"
= "2024-07-23"
= "2024-12-19"
= "https://www.crowdstrike.com/blog/fake-recovery-manual-used-to-deliver-unidentified-stealer/"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/infostealer_win_daolpu_str.yar#L1-L26"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
= "9372a88efcdca6ca57f354fb31569522e5458271cc51dfedf09c6178a47a5b67"
= 75
= 80
= "FILE"
= "1.0"
= "TLP:CLEAR"
strings:
$str01 = "Content-Type: %s%s%s" ascii
$str02 = "Content-Disposition: %s%s%s%s%s%s%s" ascii
$str03 = "\\CocCoc\\Browser\\User Data\\Local State" ascii
$str04 = "\\Microsoft\\Edge\\User Data\\Default\\Login Data" ascii
$str05 = "\\Mozilla\\Firefox\\Profiles" ascii
$str06 = "No MAC Address Found" ascii
$str07 = "C:\\Windows\\Temp\\" ascii
$str08 = "C:\\Windows\\Temp\\result.txt" ascii
$str09 = "Privatekey@2211#$" ascii
$str10 = "CryptStringToBinaryA Failed to convert BASE64 private key." ascii
$str11 = "taskkill /F /IM chrome.exe" ascii
condition:
uint16( 0 ) == 0x5A4D and 8 of them
}
Strings (11 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $str01 | text | "Content-Type: %s%s%s" | ascii |
| $str02 | text | "Content-Disposition: %s%s%s%s%s%s%s" | ascii |
| $str03 | text | "\\CocCoc\\Browser\\User Data\\Local State" | ascii |
| $str04 | text | "\\Microsoft\\Edge\\User Data\\Default\\Login Data" | ascii |
| $str05 | text | "\\Mozilla\\Firefox\\Profiles" | ascii |
| $str06 | text | "No MAC Address Found" | ascii |
| $str07 | text | "C:\\Windows\\Temp\\" | ascii |
| $str08 | text | "C:\\Windows\\Temp\\result.txt" | ascii |
| $str09 | text | "Privatekey@2211#$" | ascii |
| $str10 | text | "CryptStringToBinaryA Failed to convert BASE64 private key." | ascii |
| $str11 | text | "taskkill /F /IM chrome.exe" | ascii |
Condition
uint16( 0 ) == 0x5A4D and 8 of themIn plain words (Heuristic)
- The file must start with “MZ” — a Windows executable (PE).
- At least 8 patterns in the rule must match.
Test this rule in your browser
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Licence & attribution
Author: Sekoia.io
Source repository: SEKOIA.IO Community @ a438a5901a
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: dde1cf12-48d8-45b6-b453-b7196e6b1271
Metadata
| version | 1.0 |
|---|---|
| classification | TLP:CLEAR |
Tags:FILE
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