Categories: Malware

What is “Ser.Ursu.12490”?

The Ser.Ursu.12490 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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Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
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What Ser.Ursu.12490 virus can do?

  • Executable code extraction
  • Creates RWX memory
  • Loads a driver
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
  • Drops a binary and executes it
  • The binary likely contains encrypted or compressed data.
  • The executable is likely packed with VMProtect
  • Uses Windows utilities for basic functionality
  • Deletes its original binary from disk
  • A process attempted to delay the analysis task by a long amount of time.
  • Attempts to repeatedly call a single API many times in order to delay analysis time
  • Installs itself for autorun at Windows startup
  • Creates a copy of itself
  • Uses suspicious command line tools or Windows utilities

How to determine Ser.Ursu.12490?


File Info:

crc32: BD48864Dmd5: a7893de4325386447779c7067a3321c6name: A7893DE4325386447779C7067A3321C6.mlwsha1: 725d35d0778b70acdd1344f1499f31e74831a4b5sha256: d5a54fb41c0fbe21fc351da5d2663f18a20ff2873029b1ed5b42b14e2a4f17fdsha512: ecd86b3ac842661d32f5dc7cdb38481b5efb1cea912950a9b9b10f985dac27396276798dff38e2c435b3f0965fdd65bedb5b68856a7f35bb429f9f6b2df2af51ssdeep: 12288:JeM3TR0deAKfLhptd+fyMGFkkAe5ylGye/yAz89e+23Rt/HF+20JG5g:QM+CdptdgGp5yHefht/HF+2aG5type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: dasInternalName: asFileVersion: asdCompanyName: PrivateBuild: asdLegalTrademarks: Comments: ProductName: MyPad ApplicationSpecialBuild: dProductVersion: asFileDescription: MyPad MFC ApplicationOriginalFilename: dTranslation: 0x0409 0x04b0

Ser.Ursu.12490 also known as:

Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
DrWeb BackDoor.Farfli.131
ALYac Gen:Variant.Ser.Ursu.12490
Cylance Unsafe
CrowdStrike win/malicious_confidence_80% (W)
Alibaba Backdoor:Win32/Farfli.2d677947
K7GW Riskware ( 0040eff71 )
Cybereason malicious.432538
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Backdoor.Win32.Farfli.bvqu
BitDefender Gen:Variant.Ser.Ursu.12490
MicroWorld-eScan Gen:Variant.Ser.Ursu.12490
Ad-Aware Gen:Variant.Ser.Ursu.12490
Sophos Mal/Generic-S
BitDefenderTheta Gen:NN.ZexaF.34690.PC0@aeg6hTci
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Backdoor.jc
FireEye Generic.mg.a7893de432538644
Emsisoft Gen:Variant.Ser.Ursu.12490 (B)
SentinelOne Static AI – Malicious PE
eGambit Unsafe.AI_Score_99%
Microsoft Backdoor:Win32/Zegost.KM!MTB
Arcabit Trojan.Ser.Ursu.D30CA
ZoneAlarm Backdoor.Win32.Farfli.bvqu
GData Gen:Variant.Ser.Ursu.12490
AhnLab-V3 Backdoor/Win.Zegost.C4474490
McAfee Artemis!A7893DE43253
MAX malware (ai score=85)
Malwarebytes Malware.Heuristic.1003
Panda Trj/CI.A
Rising Backdoor.Farfli!8.B4 (CLOUD)
Fortinet W32/PossibleThreat
AVG Win32:Malware-gen
Paloalto generic.ml

How to remove Ser.Ursu.12490?

  • 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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