user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat Trojan:Win32/PureLogs!rfn
Trojan:Win32/PureLogs!rfn - Windows Defender threat signature analysis

Trojan:Win32/PureLogs!rfn - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Trojan:Win32/PureLogs!rfn
Classification:
Type:Trojan
Platform:Win32
Family:PureLogs
Detection Type:Concrete
Known malware family with identified signatures
Suffix:!rfn
Specific ransomware family name
Confidence:Very High
False-Positive Risk:Low

Concrete signature match: Trojan - Appears legitimate but performs malicious actions for 32-bit Windows platform, family PureLogs

Summary:

Trojan:Win32/PureLogs!rfn is a highly evasive trojan that leverages numerous legitimate Windows utilities like mshta, regsvr32, rundll32, PowerShell, and BITS for execution and persistence. It employs API hooking, TripleDES encryption, and scheduled tasks to maintain stealth, control system behavior, and facilitate potential data exfiltration or remote command execution.

Severity:
Critical
VDM Static Detection:
Relevant strings associated with this threat:
 - \AppData\Local\Temporary Projects\WindowsFormsApp1\obj\Debug\iTalk.pdb (PEHSTR_EXT)
 - TripleDESCryptoServiceProvider (PEHSTR_EXT)
 - !#HSTR:StringCodeForMshta.A!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForHooking.C!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForHooking.D!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForHooking.L!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForHooking.O!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForRegsvr32.A!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForRundll32.A!pli (PEHSTR_EXT)
 - rundll32 (PEHSTR_EXT)
 - !#HSTR:StringCodeForBITSJobs.A!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForPowerShell.G!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForScheduledTask.A!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForDataEncoding.D!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForHooking.J!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForHooking.K!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForRemoteFileCopy.B!pli (PEHSTR_EXT)
 - !#HSTR:ExecutionGuardrails (PEHSTR_EXT)
 - !#HSTR:StringCodeForFileDeletion.A!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForHooking.M!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForNetshHelperDLL.A!pli (PEHSTR_EXT)
 - !#HSTR:StringCodeForRemoteServices.A!pli (PEHSTR_EXT)
Known malware which is associated with this threat:
Filename: 4c35f0f5a81eb78ee167c2def3864d84d6f2fbf368eeab916f8be19e0ad049cc
4c35f0f5a81eb78ee167c2def3864d84d6f2fbf368eeab916f8be19e0ad049cc
23/12/2025
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the affected system to prevent further compromise. Perform a full system scan using an up-to-date EDR solution, removing all detected malicious files, associated registry entries, and persistence mechanisms like scheduled tasks or BITS jobs. Investigate for signs of lateral movement, credential theft, and data exfiltration, and reset any compromised credentials.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 23/12/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊