Concrete signature match: Ransomware - Encrypts files and demands payment for 32-bit Windows platform, family WannaCrypt
Ransom:Win32/WannaCrypt!pz is a critical ransomware threat that rapidly spreads across networks using the EternalBlue SMB exploit. It encrypts a wide range of file types, renames them, disables system recovery features, and demands a Bitcoin ransom for decryption, leveraging various system tools for persistence and propagation.
Relevant strings associated with this threat:
- launcher.dll (PEHSTR)
- mssecsvc.exe (PEHSTR)
- f.wnry (PEHSTR_EXT)
- %.1f BTC (PEHSTR_EXT)
- @WanaDecryptor@.exe (PEHSTR_EXT)
- %08X.eky (PEHSTR_EXT)
- %08X.pky (PEHSTR_EXT)
- %08X.res (PEHSTR_EXT)
- tasksche.exed (PEHSTR_EXT)
- tasksche.exe (PEHSTR_EXT)
- t.wnry (PEHSTR_EXT)
- icacls . /grant Everyone:F / (PEHSTR_EXT)
- msg/m_korean.wnry (PEHSTR_EXT)
- pmsg/m_latvian.wnry (PEHSTR_EXT)
- taskdl.exe (PEHSTR_EXT)
- cmd. (PEHSTR_EXT)
- u.wnry (PEHSTR_EXT)
- cmd.exe /c reg add (PEHSTR_EXT)
- \s.wnry (FILEPATH)
- \u.wnry (FILEPATH)
- %d.%d.%d.%d2 (PEHSTR)
- \\%s\ipc$ (PEHSTR)
- taskhcst.exe (PEHSTR)
- lsasvs.exe (PEHSTR)
- icacls . /grant Everyone (PEHSTR_EXT)
- cmd.exe /c (PEHSTR_EXT)
- .lay6 (PEHSTR_EXT)
- .sqlite3 (PEHSTR_EXT)
- .sqlitedb (PEHSTR_EXT)
- .accdb (PEHSTR_EXT)
- .java (PEHSTR_EXT)
- .class (PEHSTR_EXT)
- .mpeg (PEHSTR_EXT)
- .djvu (PEHSTR_EXT)
- .tiff (PEHSTR_EXT)
- .jpeg (PEHSTR_EXT)
- .backup (PEHSTR_EXT)
- .vmdk (PEHSTR_EXT)
- .sldm (PEHSTR_EXT)
- .sldx (PEHSTR_EXT)
- delete shadows /all /quiet (PEHSTR_EXT)
- .onetoc2 (PEHSTR_EXT)
- .vsdx (PEHSTR_EXT)
- .potm (PEHSTR_EXT)
- .potx (PEHSTR_EXT)
- .ppam (PEHSTR_EXT)
- !WannaDecryptor!.exe (PEHSTR)
- u.wry (PEHSTR)
- %.1f BTC (PEHSTR)
- ,WScript.CreateObject("WScript.Shell")> c.vbs (PEHSTR)
- Global\MsWinZonesCacheCounterMutexAd (PEHSTR_EXT)
- t.wnryd (PEHSTR_EXT)
- m_%s.wnry (PEHSTR_EXT)
- .exe (PEHSTR_EXT)
- launcher.dll (PEHSTR_EXT)
- msg/m_danish.wnry (PEHSTR_EXT)
- msg/m_dutch.wnry (PEHSTR_EXT)
- msg/m_filipino.wnry (PEHSTR_EXT)
- msg/m_french.wnry (PEHSTR_EXT)
- msg/m_german.wnry (PEHSTR_EXT)
- Cry.img (PEHSTR_EXT)
- @toututa.com (PEHSTR_EXT)
- WannaCryptor (PEHSTR_EXT)
- Wrong.Hahaha (PEHSTR_EXT)
- \AllTheThings.dll (PEHSTR_EXT)
- \WannaCry.pdb (PEHSTR_EXT)
- \Wana Decrypt Or 2.0.pdb (PEHSTR_EXT)
- PLEASE CONTACT https://message.bilibili.com/#whisper/mid490825280 TO FIX YOUR PC!!! (PEHSTR_EXT)
- YOU MUST COMPLETE THIS IN ONE HOUR!!!OR YOU MUST SAY BYE BYE TO YOUR PC!!! (PEHSTR_EXT)
- mHtyDZcsrtT4/t3O+3smlSCOHOGPecD9WyHiK92g6U5yU (PEHSTR_EXT)
- vgLv/4CGSWX5CdAY5bVOmiK3URqJGG6MCpTC5MB (PEHSTR_EXT)
- Rp/ovZWeh65j6G5mVS3o3Ux5cH2pfT/VZ (PEHSTR_EXT)
- eee.exe (PEHSTR_EXT)
- .wnry (PEHSTR_EXT)
- limiteci/WannaCry/raw/main/WannaCry.EXE (PEHSTR_EXT)
- cmd /c image.png (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)0ce805fdbf012822bf83a6c61989651cde1d70cb6be8a2991f4e68abfc25839cImmediately isolate the infected system from the network. Perform a full scan with updated antivirus software and restore encrypted files from clean, offline backups. Ensure all systems are patched against the MS17-010 (EternalBlue) vulnerability and implement network segmentation to prevent further lateral movement.