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

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

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Trojan:Win32/VidarStealer!rfn
Classification:
Type:Trojan
Platform:Win32
Family:VidarStealer
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 VidarStealer

Summary:

Trojan:Win32/VidarStealer!rfn is a potent information-stealing trojan designed to exfiltrate a wide range of sensitive data from an infected system. It targets browser passwords, cookies, cryptocurrency wallets, and system information, and is capable of taking screenshots. The malware utilizes built-in Windows tools and hooking techniques to execute its malicious functions and evade detection.

Severity:
Critical
VDM Static Detection:
Relevant strings associated with this threat:
 - files\outlook.txt (PEHSTR_EXT)
 - files\information.txt (PEHSTR_EXT)
 - passwords.txt (PEHSTR_EXT)
 - \logins.json (PEHSTR_EXT)
 - screenshot.jpg (PEHSTR_EXT)
 - image/jpeg (PEHSTR_EXT)
 - /c taskkill /im  (PEHSTR_EXT)
 - Cookies\%s_%s.txt (PEHSTR_EXT)
 - \Electrum-LTC\wallets (PEHSTR_EXT)
 - multidoge.wallet (PEHSTR_EXT)
Relevant strings associated with this threat:
 - !#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)
No specific strings found for this threat
Known malware which is associated with this threat:
587eeb1b6f5dae33ef378941294dd1ccab0cfa92c49209f944949bcd5926dfb1
07/11/2025
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the affected machine from the network. Run a full, offline antivirus scan to remove the threat; consider re-imaging the system for complete certainty. Change all passwords for accounts used on the machine, enable multi-factor authentication, and transfer any cryptocurrency assets to a new, secure wallet from a clean device.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 05/11/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊