Categories: Malware

Ursu.338688 removal instruction

The Ursu.338688 is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What Ursu.338688 virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Possible date expiration check, exits too soon after checking local time
  • Anomalous file deletion behavior detected (10+)
  • A process attempted to delay the analysis task.
  • Dynamic (imported) function loading detected
  • Reads data out of its own binary image
  • Manipulates data from or to the Recycle Bin
  • A process created a hidden window
  • CAPE extracted potentially suspicious content
  • The binary contains an unknown PE section name indicative of packing
  • The binary likely contains encrypted or compressed data.
  • The executable is likely packed with VMProtect
  • Authenticode signature is invalid
  • A scripting utility was executed
  • Uses Windows utilities for basic functionality
  • Tries to suspend Cuckoo threads to prevent logging of malicious activity
  • Writes a potential ransom message to disk
  • Collects and encrypts information about the computer likely to send to C2 server
  • Installs itself for autorun at Windows startup
  • Creates a hidden or system file
  • CAPE detected the WanaCry malware family
  • Harvests cookies for information gathering
  • Creates a known WannaCry ransomware decryption instruction / key file.
  • Uses suspicious command line tools or Windows utilities

How to determine Ursu.338688?


File Info:

name: 7367AA294BC0A75B3A7B.mlwpath: /opt/CAPEv2/storage/binaries/1f4d470a98426c47fefa7a5d93e3ab5d424e3dc54300e4eacbdee9ada6112a35crc32: D534C601md5: 7367aa294bc0a75b3a7b5752e8ac9339sha1: 7b05343c2a3f35ae3dfc0d9b374a18335fa85ce2sha256: 1f4d470a98426c47fefa7a5d93e3ab5d424e3dc54300e4eacbdee9ada6112a35sha512: b0a80b39105aef23168b9264e73f4ae82e688c23589bfb036ac94b0caf029c7b3f7e33f7b8f017a3d97f2dbde796ca5977bdfabf4b237ac0631e92ce2f8f1f41ssdeep: 98304:XTxx1tNJK/bkVbP0CgXeGTeLn/pAeTTt4PWa:dztNJvPOuJn/Tvtzatype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1C72633BF95444591C6ED0F70943BC94E85323D3BAA3D97E92CCCBA471A332A6C15B2C9sha3_384: cb052210741a9544381be1c145836b0c76e41080298de859a766f82648b7547663515d79bdfb741dffd484c04ba8f16cep_bytes: 9cc704241ccb22d49c66c70424dea288timestamp: 2010-11-20 09:05:05

Version Info:

CompanyName: Microsoft CorporationFileDescription: Microsoft ExcelFileVersion: 14.0.6024.1000InternalName: ExcelLegalCopyright: © 2010 Microsoft Corporation. All rights reserved.LegalTrademarks1: Microsoft® is a registered trademark of Microsoft Corporation.LegalTrademarks2: Windows® is a registered trademark of Microsoft Corporation.OriginalFilename: Excel.exeProductName: Microsoft Office 2010ProductVersion: 14.0.6024.1000ThinAppBuildDateTime: 20120810 220808ThinAppLicense: MicrosoftThinAppVersion: 4.7.2-771812Translation: 0x0000 0x04e4

Ursu.338688 also known as:

Lionic Trojan.Win32.Generic.4!c
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Ursu.338688
CAT-QuickHeal Ransom.Zenshirsh.SL8
ALYac Gen:Variant.Ursu.338688
Cylance Unsafe
Zillya Trojan.Filecoder.Win32.16642
Sangfor Ransom.Win32.WannaCrypt.mt
K7AntiVirus Trojan ( 0050e69e1 )
BitDefender Gen:Variant.Ursu.338688
K7GW Trojan ( 0050e69e1 )
CrowdStrike win/malicious_confidence_100% (D)
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Filecoder.WannaCryptor.D
APEX Malicious
Avast Win32:WannaCry-E [Trj]
Kaspersky UDS:Trojan.Win32.Generic
Alibaba Ransom:Win32/WannaCry.ali1020010
NANO-Antivirus Trojan.Win32.Encoder.iaqmwd
Rising Ransom.WannaCrypt!8.E720 (C64:YzY0OinRBbptmduk)
Ad-Aware Gen:Variant.Ursu.338688
Emsisoft Gen:Variant.Ursu.338688 (B)
Comodo Malware@#1g2em5z2qwf8z
DrWeb Trojan.Encoder.32917
VIPRE Trojan.Win32.WannaCrypt.a (v)
McAfee-GW-Edition BehavesLike.Win32.Generic.rc
FireEye Generic.mg.7367aa294bc0a75b
Sophos Mal/Generic-R + Mal/Wanna-A
SentinelOne Static AI – Malicious PE
Avira TR/Black.Gen2
MAX malware (ai score=82)
Antiy-AVL Trojan/Generic.ASMalwS.30F85B5
Microsoft Ransom:Win32/Cryptolocker.PDP!MTB
Arcabit Trojan.Ursu.D52B00
GData Gen:Variant.Ursu.338688
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.WannaCryptor.R200710
McAfee BackDoor-FDOH!7367AA294BC0
VBA32 BScope.TrojanRansom.Wanna
Malwarebytes Ransom.WannaCrypt
Tencent Win32.Trojan.Filecoder.Agbf
Ikarus Trojan-Ransom.Wannacryptor
MaxSecure Trojan.Malware.7164915.susgen
Fortinet W32/WannaCry.F74F!tr.ransom
BitDefenderTheta Gen:NN.ZexaF.34212.@B0@aaXZmYci
AVG Win32:WannaCry-E [Trj]
Cybereason malicious.94bc0a
Paloalto generic.ml

How to remove Ursu.338688?

  • Download and install GridinSoft Anti-Malware.
  • Open GridinSoft Anti-Malware and perform a “Standard scan“.
  • Move to quarantine” all items.
  • Open “Tools” tab – Press “Reset Browser Settings“.
  • Select proper browser and options – Click “Reset”.
  • Restart your computer.
Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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