Categories: Trojan

Trojan-Downloader.Win32.Bitser.cst malicious file

The Trojan-Downloader.Win32.Bitser.cst 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 Trojan-Downloader.Win32.Bitser.cst virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Dynamic (imported) function loading detected
  • Performs HTTP requests potentially not found in PCAP.
  • The binary contains an unknown PE section name indicative of packing
  • Authenticode signature is invalid
  • Creates a hidden or system file

How to determine Trojan-Downloader.Win32.Bitser.cst?


File Info:

name: 92963FC989E80A074EA9.mlwpath: /opt/CAPEv2/storage/binaries/09718328ef7afcd7ce764d2b3878a8237a13c347c2c5e4de320b165b9b8c1248crc32: A5583ED2md5: 92963fc989e80a074ea909af8c758ea5sha1: c7761f29a3f42128ed3e1523ca84e194036621cesha256: 09718328ef7afcd7ce764d2b3878a8237a13c347c2c5e4de320b165b9b8c1248sha512: 62edfa3a1f97afd37fd3a2993861c3e6f56d49105295bbb7eed35fa084cb044650d94c982fe568313d1497e320c99d667eb20cf3d7f36ff1eaf13141c23347d3ssdeep: 24576:vevufIGzcvIsSL85c6qwJkI1tqzwPU+OuwL/:vevuXmRSL8Fz18zA+1/type: PE32 executable (console) Intel 80386, for MS Windowstlsh: T1B8754911B7909129F8F302FB59FE20AC942CFAE0076C90C752C56AEE9669BF17D31653sha3_384: 9aebf94163abceb1254c24c207e72d8b9e6a0bd729581b6f02d246d880887fdce5301faa8eabd0adfb17e80cf24a1129ep_bytes: e94b070400e9269a0200e9f1db0a00e9timestamp: 2021-12-08 02:20:56

Version Info:

0: [No Data]

Trojan-Downloader.Win32.Bitser.cst also known as:

Lionic Trojan.Win32.Bitser.a!c
MicroWorld-eScan Trojan.GenericKD.38242563
FireEye Trojan.GenericKD.38242563
ALYac Trojan.GenericKD.38242563
Cylance Unsafe
Zillya Downloader.Bitser.Win32.3377
Alibaba TrojanDownloader:Win32/Bitser.80a3e53e
Symantec ML.Attribute.HighConfidence
APEX Malicious
Kaspersky Trojan-Downloader.Win32.Bitser.cst
BitDefender Trojan.GenericKD.38242563
Avast Win32:DropperX-gen [Drp]
Tencent Win32.Trojan-downloader.Bitser.Hssc
Ad-Aware Trojan.GenericKD.38242563
Sophos Mal/Generic-S
TrendMicro TROJ_GEN.R002C0WLD21
McAfee-GW-Edition BehavesLike.Win32.Generic.tm
Emsisoft Trojan.GenericKD.38242563 (B)
GData Trojan.GenericKD.38242563
Jiangmin TrojanDownloader.Bitser.aj
Gridinsoft Ransom.Win32.Sabsik.sa
Arcabit Trojan.Generic.D2478903
Microsoft Trojan:Win32/Sabsik.FL.B!ml
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win.FU.R458568
McAfee GenericRXRC-FU!92963FC989E8
MAX malware (ai score=82)
VBA32 TrojanDownloader.Bitser
TrendMicro-HouseCall TROJ_GEN.R002C0WLD21
SentinelOne Static AI – Suspicious PE
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/PossibleThreat
AVG Win32:DropperX-gen [Drp]
Panda Trj/GdSda.A

How to remove Trojan-Downloader.Win32.Bitser.cst?

  • 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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