Categories: Malware

About “Ursu.158223” infection

The Ursu.158223 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.158223 virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Creates RWX memory
  • Guard pages use detected – possible anti-debugging.
  • Dynamic (imported) function loading detected
  • Enumerates the modules from a process (may be used to locate base addresses in process injection)
  • CAPE extracted potentially suspicious content
  • .NET file is packed/obfuscated with SmartAssembly
  • Authenticode signature is invalid
  • Anomalous .NET characteristics

How to determine Ursu.158223?


File Info:

name: 1FBC1390AD7E3191C31E.mlwpath: /opt/CAPEv2/storage/binaries/0710cdf27b370f66f3ace5a674c4be263c8454fe60ada7420e752648f7f76621crc32: 6CB30307md5: 1fbc1390ad7e3191c31ee9fe08a047d4sha1: f3ebda2ec2e13c986f112cfa4e0228749d138273sha256: 0710cdf27b370f66f3ace5a674c4be263c8454fe60ada7420e752648f7f76621sha512: 956f4f14530e2372db8c2e2e097835af8031b70f93ef908b6a9ebdcd27b914141c141deda6340dca1c38ee33c1b507b27f46974c8a47401518f5fa0c6e60f328ssdeep: 3072:G07ER1NYR5iPRHJcNuKp58JugAORp2sFO9aQN0+Dy1K9fE2FoXxE9xmoFIxmKXYg:G07ER1NYnqc7WoUDSUZtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T15286BEBA5C687C2371328CD5B42E2A49F91C6063BC9C7F5B5CEBC2547CA6A43358B18Dsha3_384: 7152da8c29c7fb432b5fd0f4985f5213fec59d89ac01ab68fd9fc3bc73f108f66953d80e948895f5bfe5f6a168a0a0a9ep_bytes: ff250020400000000000000000000000timestamp: 2018-05-02 11:00:33

Version Info:

Translation: 0x0000 0x04b0FileDescription: FileVersion: 0.0.0.0InternalName: CleanServer.exeLegalCopyright: OriginalFilename: CleanServer.exeProductVersion: 0.0.0.0Assembly Version: 0.0.0.0

Ursu.158223 also known as:

Elastic malicious (high confidence)
DrWeb Trojan.DownLoader26.42680
MicroWorld-eScan Gen:Variant.Ursu.158223
FireEye Generic.mg.1fbc1390ad7e3191
ALYac Gen:Variant.Ursu.158223
Cylance Unsafe
K7AntiVirus Trojan ( 00516d291 )
Alibaba Trojan:MSIL/Kryptik.4fc7cd11
K7GW Trojan ( 00516d291 )
Cybereason malicious.0ad7e3
BitDefenderTheta Gen:NN.ZemsilF.34062.@p0@amcOayg
Cyren W32/Trojan.BPG.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/Kryptik.KWE
TrendMicro-HouseCall TROJ_GEN.R007C0PL421
Paloalto generic.ml
Kaspersky HEUR:Trojan.MSIL.Generic
BitDefender Gen:Variant.Ursu.158223
NANO-Antivirus Trojan.Win32.Kryptik.fazqvv
Avast Win32:Malware-gen
Tencent Msil.Trojan.Kryptik.Ecvc
Ad-Aware Gen:Variant.Ursu.158223
Sophos Mal/Generic-S
Comodo Malware@#ge4py3xypi17
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_GEN.R007C0PL421
McAfee-GW-Edition Packed-YC!1FBC1390AD7E
Emsisoft Gen:Variant.Ursu.158223 (B)
SentinelOne Static AI – Malicious PE
GData Gen:Variant.Ursu.158223
Avira TR/Dropper.Gen
MAX malware (ai score=99)
Antiy-AVL Trojan/Generic.ASMalwS.25F97C1
Microsoft Backdoor:MSIL/Bladabindi
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.ADH.C82131
McAfee Packed-YC!1FBC1390AD7E
VBA32 TScope.Trojan.MSIL
Malwarebytes Generic.Malware/Suspicious
APEX Malicious
Yandex Trojan.Agent!mIKT+hUGpNg
Ikarus Trojan.MSIL.Crypt
MaxSecure Trojan.Malware.11196064.susgen
Fortinet MSIL/Kryptik.KWE!tr
AVG Win32:Malware-gen
Panda Trj/GdSda.A
CrowdStrike win/malicious_confidence_100% (W)

How to remove Ursu.158223?

  • 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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