GCVE-110-OSM-2019-4

Advisory PublishedCVSS 9.6/10

Vulnetix · Advisory published July 22, 2019

Typosquatting attack mimicking symfony/process (300M+ downloads). Package phones home to C2 server with server information including IP, port, and hostname via $_SERVER superglobal exfiltration. Malware executes via new Symfony\Process\Process() call in tests/test.php. Sends HTTP request to C2 at hxxp://www.yls333[.]com/dev.php with base64-encoded $_SERVER data. Related infrastructure includes iosinstall.yls333[.]com resolving to 183.60.141.147, which hosts Apple phishing domains using homoglyph techniques.

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Weaknesses (CWE)

CWE-506Embedded Malicious Code

Risk Scores

CVSS 3.1

9.6/10

Critical · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Affected Products

Vendor	Product	Versions	Platforms
unknown	symfont/process	All versions affected (affected)	—

References

Malicious packagist package: symfont/process

advisory

vendor

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