Categories: Malware

Ursu.773421 information

The Ursu.773421 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.773421 virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Behavioural detection: Executable code extraction – unpacking
  • 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
  • Guard pages use detected – possible anti-debugging.
  • Dynamic (imported) function loading detected
  • A process created a hidden window
  • CAPE extracted potentially suspicious content
  • Unconventionial language used in binary resources: Malayalam
  • The binary likely contains encrypted or compressed data.
  • .NET file is packed/obfuscated with SmartAssembly
  • Authenticode signature is invalid
  • Anomalous .NET characteristics
  • Uses Windows utilities for basic functionality
  • Behavioural detection: Injection (Process Hollowing)
  • Executed a process and injected code into it, probably while unpacking
  • Attempts to modify desktop wallpaper
  • Behavioural detection: Injection (inter-process)
  • CAPE detected the Formbook malware family
  • Attempts to masquerade or mimic a legitimate process or file name
  • Uses suspicious command line tools or Windows utilities

How to determine Ursu.773421?


File Info:

name: 23CF51E8403001066169.mlwpath: /opt/CAPEv2/storage/binaries/c1c3399ed911782ec14180a857a48231f7e3182dd9340ed6308b9a70cacc2885crc32: C8D12BA8md5: 23cf51e84030010661697e3f76745934sha1: b9add2c09dbfabcd1948483567635151cc92d321sha256: c1c3399ed911782ec14180a857a48231f7e3182dd9340ed6308b9a70cacc2885sha512: 7bd74e41dde490bcf8314030722aea043a514a275048b5885d7a52836c18ad53bd1fc0c2f5e516ec11cebb7a2db566f13b16624a84feed426f87c34485ce1605ssdeep: 6144:SUCzChaE/Em7DggLs3thfOsOp4CbVbyvhCJ:vKChT/n7DgqUVODbVby5Ctype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T14574020DBBDCE625C9BE13B259D205440923896B9A37F74B6D8C60B4DF723C689E131Bsha3_384: 76ef33b0cba56ed95fcf5ac0e71a70d88c3941767e4a1262d455de32e7870e82557a887170f5573095ce0bbbe01e3368ep_bytes: ff250020400000000000timestamp: 2019-06-23 08:55:34

Version Info:

Comments: FileVersion: 1.0.0.54 ProductVersion: 1.0.0.54 CompanyName: LegalCopyright: ProductName: Netopsystems Size Optimizer(R) Translation: 0x0000 0x04b0

Ursu.773421 also known as:

Lionic Trojan.MSIL.Noon.l!c
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Ursu.773421
ALYac Spyware.Noon.gen
Cylance Unsafe
Zillya Trojan.Kryptik.Win32.1951583
Sangfor Trojan.MSIL.Noon.gen
K7AntiVirus Trojan ( 0055340c1 )
Alibaba TrojanSpy:MSIL/NanoCore.b371f64a
K7GW Trojan ( 0055340c1 )
Cybereason malicious.840300
Cyren W32/Trojan.SZJR-0297
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/Kryptik.SHS
APEX Malicious
Paloalto generic.ml
Kaspersky HEUR:Trojan-Spy.MSIL.Noon.gen
BitDefender Gen:Variant.Ursu.773421
NANO-Antivirus Trojan.Win32.Noon.hjhbwe
Avast Win32:TrojanX-gen [Trj]
Ad-Aware Gen:Variant.Ursu.773421
Sophos Mal/Generic-R + Mal/MSIL-UC
Comodo Malware@#2n2ccwvalpuj3
DrWeb Trojan.Siggen9.15284
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Generic.fh
FireEye Generic.mg.23cf51e840300106
Emsisoft Gen:Variant.Ursu.773421 (B)
Ikarus Trojan.MSIL.SmartAssembly
GData Gen:Variant.Ursu.773421
Jiangmin TrojanSpy.MSIL.anhb
Avira TR/Dropper.Gen
MAX malware (ai score=82)
Antiy-AVL Trojan/Generic.ASMalwS.3243012
Kingsoft Win32.Troj.Undef.(kcloud)
Arcabit Trojan.Ursu.DBCD2D
Microsoft Trojan:MSIL/NanoCore.VN!MTB
Cynet Malicious (score: 100)
AhnLab-V3 Malware/Win32.RL_Generic.C4084435
McAfee GenericRXIH-IE!23CF51E84030
VBA32 TScope.Trojan.MSIL
Malwarebytes MachineLearning/Anomalous.95%
Tencent Msil.Trojan-spy.Noon.Hrpn
Yandex Trojan.Kryptik!CfQTxKgi4TY
SentinelOne Static AI – Malicious PE
eGambit Unsafe.AI_Score_99%
Fortinet MSIL/CoinMiner.SHS!tr
BitDefenderTheta Gen:NN.ZemsilF.34294.um3@aStm9lcG
AVG Win32:TrojanX-gen [Trj]
Panda Trj/GdSda.A
CrowdStrike win/malicious_confidence_100% (W)
MaxSecure Trojan.Malware.73691310.susgen

How to remove Ursu.773421?

  • 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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