Trojan

About “NSIS/TrojanDownloader.Agent.OBN” infection

Malware Removal

The NSIS/TrojanDownloader.Agent.OBN 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 NSIS/TrojanDownloader.Agent.OBN virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • Sample contains Overlay data
  • Uses Windows utilities for basic functionality
  • Performs HTTP requests potentially not found in PCAP.
  • Reads data out of its own binary image
  • Authenticode signature is invalid
  • Behavioural detection: Injection (inter-process)
  • Behavioural detection: Injection with CreateRemoteThread in a remote process
  • Attempts to modify proxy settings
  • Deletes executed files from disk
  • Touches a file containing cookies, possibly for information gathering

How to determine NSIS/TrojanDownloader.Agent.OBN?


File Info:

name: 97BAFA5D9C417A4A26E4.mlw
path: /opt/CAPEv2/storage/binaries/17b5e526cbb8fc136c3d4c57173e0619c57482a724beebb112bcb404d4420e82
crc32: 60D0A7F3
md5: 97bafa5d9c417a4a26e4993413a606eb
sha1: de25c7a78f758a6e66aa3f2decc47e2a0adb3299
sha256: 17b5e526cbb8fc136c3d4c57173e0619c57482a724beebb112bcb404d4420e82
sha512: 2b49239b61d71ae4f2eb6df87dea667edf6b14ea1183acf217dc947d5e21ad3acc0439ce6e1c1d7891d697e3ac942d0ad50ba12d5e6909dc76721bbe8717841f
ssdeep: 196608:DCiYq5pjxAwA/THcNwTAlAWzN+PpC6UQJlU/rnsfx+KNZeYez8aQHD2peixD:DTTtxAwAb8NwT1I+Z7inI+sZh/HKpRD
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T11EB63306E2A7CE45FDB814BD58B495760E3ABC41D970C79327E63FAE78F8107845223A
sha3_384: 500100bf8e723b35a9d671b1099ff711993f826937abbf5b0c86d394704427852c9fb0ca4a27099572574a39c2c7fc47
ep_bytes: 81ecf80300005556576a205f33ed6801
timestamp: 2023-07-02 02:09:48

Version Info:

0: [No Data]

NSIS/TrojanDownloader.Agent.OBN also known as:

BkavW32.AIDetectMalware
MalwarebytesTrojan.Downloader.NSIS
CrowdStrikewin/grayware_confidence_60% (D)
Elasticmalicious (high confidence)
ESET-NOD32NSIS/TrojanDownloader.Agent.OBN
APEXMalicious
TrendMicro-HouseCallTROJ_GEN.R002C0DBO24
KasperskyHEUR:Trojan-Downloader.Win32.OffLoader.gen
AvastWin32:Malware-gen
SophosMal/Generic-S
GoogleDetected
F-SecureTrojan.TR/Redcap.nvsaa
TrendMicroTROJ_GEN.R002C0DBO24
Trapminemalicious.moderate.ml.score
VaristW32/Trojan.WMIT-7221
AviraTR/Redcap.nvsaa
Antiy-AVLTrojan[Downloader]/Win32.OffLoader.gen
MicrosoftTrojan:Win32/OffLoader.GPC!MTB
ZoneAlarmHEUR:Trojan-Downloader.Win32.OffLoader.gen
CynetMalicious (score: 99)
VBA32BScope.Trojan.Packed
IkarusTrojan.Win32.OffLoader
MaxSecureTrojan.Malware.222601439.susgen
FortinetNSIS/Agent.OBN!tr.dldr
AVGWin32:Malware-gen

How to remove NSIS/TrojanDownloader.Agent.OBN?

NSIS/TrojanDownloader.Agent.OBN removal tool
  • 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.

About the author

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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