Beware the UUID Bandit: How Malicious Scripts Sneak Past Detection with Cunning API Calls
In the world of cybersecurity, spotting “strange” API calls can be key. A malicious Python script using the UuidFromStringA() API call cleverly disguised its shellcode as UUIDs. This technique is a sneaky way to stay under the radar, with the script’s VT score a measly 2/61. Keep an eye out for those UUIDs!
Hot Take:
Ah, the joys of teaching! Where else can you give students the sage advice of “if it looks weird, it probably is” in the world of cybersecurity? It’s like telling a kid to avoid suspicious candy but with way more zeros and ones involved. And who knew UUIDs could be so sneaky? This Python script is like a ninja, slipping under the radar with a VT score so low it could win a limbo contest!
Key Points:
- Watch out for “strange” API calls in the Windows ecosystem.
- ctypes library in Python allows calling functions in DLLs or shared libraries.
- Malicious Python script uses UuidFromStringA() to convert UUIDs to binary format.
- Shellcode injected into memory has a low VirusTotal (VT) detection score.
- Technique previously used by the notorious Lazarus group.
Already a member? Log in here