Threat actors have been observed exploiting a now-patched critical SAP NetWeaver flaw to deliver the Auto-Color backdoor in an attack targeting a U.S.-based chemicals company in April 2025. "Over the course of three days, a threat actor gained access to the customer's network, attempted to download several suspicious files and communicated with malicious infrastructure linked to Auto-Color malware," Darktrace said in a report shared with The Hacker News. The vulnerability in question is CVE-2025-31324, a severe unauthenticated file upload bug in SAP NetWeaver that enables remote code execution (RCE). It was patched by SAP in April. Auto-Color, first documented by Palo Alto Networks Unit 42 earlier this February, functions akin to a remote access trojan, enabling remote access to…