detect_StrelaStealer
YARA-2022-0003
Medium
general
Active
detect_StrelaStealer
detect_StrelaStealer.yar
Valid Syntax
rule detect_StrelaStealer: StrelaStealer
{
meta:
description = "detect_StrelaStealer"
author = "@malgamy12"
date = "2022/11/12"
license = "DRL 1.1"
hash = "6e8a3ffffd2f7a91f3f845b78dd90011feb80d30b4fe48cb174b629afa273403"
strings:
$pdb = "StrelaDLLCompile.pdb" ascii
$s1 = "4f3855aa-af7e-4fd2-b04e-55e63653d2f7" ascii
$s2 = "StrelaDLLCompile.dll" ascii
$chunk_1 = {33 D2 8B C7 F7 F3 8D 04 2E 83 C7 ?? 83 C6 ?? 8A 92 [4] 30 56 ?? 33 D2 F7 F3 8A 82 [4] 30 46 ?? 83 FF ??}
condition:
uint16(0) == 0x5A4D and ($pdb or (1 of ($s*) and $chunk_1 ))
}
Rule Metadata
description
detect_StrelaStealer
author
@malgamy12
date
2022/11/12
license
DRL 1.1
hash
6e8a3ffffd2f7a91f3f845b78dd90011feb80d30b4fe48cb174b629afa273403
Tags
StrelaStealer
String Definitions
{"name":"$pdb","value":"\"StrelaDLLCompile.pdb\" ascii"}
{"name":"$s1","value":"\"4f3855aa-af7e-4fd2-b04e-55e63653d2f7\" ascii"}
{"name":"$s2","value":"\"StrelaDLLCompile.dll\" ascii"}
{"name":"$chunk_1","value":"{33 D2 8B C7 F7 F3 8D 04 2E 83 C7 ?? 83 C6 ?? 8A 92 [4] 30 56 ?? 33 D2 F7 F3 8A 82 [4] 30 46 ?? 83 FF ??}"}
Threat Analysis
This YARA rule is designed to detect general threats.
Severity Level: Medium
The rule uses pattern matching to identify specific byte sequences, strings, or behavioral patterns associated with malicious activity.
Detection Capabilities
- File-based detection for executables and documents
- Memory scanning for running processes
- Network traffic analysis support
Command Line Usage
# Scan a single file yara detect_StrelaStealer.yar /path/to/suspicious/file # Scan a directory recursively yara -r detect_StrelaStealer.yar /path/to/directory/ # Scan with metadata output yara -m detect_StrelaStealer.yar target_file # Scan process memory (Linux) yara detect_StrelaStealer.yar /proc/[pid]/exe
Integration Examples
Python (yara-python)
import yara
rules = yara.compile(filepath='detect_StrelaStealer.yar')
matches = rules.match('/path/to/file')
ClamAV Integration
clamscan --yara-rules=detect_StrelaStealer.yar /path/to/scan
Rule Information
YARA ID
YARA-2022-0003
Author
Repository
Created
August 19, 2025
Last Updated
August 19, 2025
Last Imported
Never
Threat Intelligence
Risk Level
Medium
Category
general
Detection Confidence
Analysis Pending
False Positive Rate
Not Available
Last Seen in Wild
No Data
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