Categories: Trojan

About “NSIS/TrojanDownloader.Agent.OBN” infection

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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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.mlwpath: /opt/CAPEv2/storage/binaries/17b5e526cbb8fc136c3d4c57173e0619c57482a724beebb112bcb404d4420e82crc32: 60D0A7F3md5: 97bafa5d9c417a4a26e4993413a606ebsha1: de25c7a78f758a6e66aa3f2decc47e2a0adb3299sha256: 17b5e526cbb8fc136c3d4c57173e0619c57482a724beebb112bcb404d4420e82sha512: 2b49239b61d71ae4f2eb6df87dea667edf6b14ea1183acf217dc947d5e21ad3acc0439ce6e1c1d7891d697e3ac942d0ad50ba12d5e6909dc76721bbe8717841fssdeep: 196608:DCiYq5pjxAwA/THcNwTAlAWzN+PpC6UQJlU/rnsfx+KNZeYez8aQHD2peixD:DTTtxAwAb8NwT1I+Z7inI+sZh/HKpRDtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T11EB63306E2A7CE45FDB814BD58B495760E3ABC41D970C79327E63FAE78F8107845223Asha3_384: 500100bf8e723b35a9d671b1099ff711993f826937abbf5b0c86d394704427852c9fb0ca4a27099572574a39c2c7fc47ep_bytes: 81ecf80300005556576a205f33ed6801timestamp: 2023-07-02 02:09:48
Version Info:
0: [No Data]

NSIS/TrojanDownloader.Agent.OBN also known as:

Bkav	W32.AIDetectMalware
Malwarebytes	Trojan.Downloader.NSIS
CrowdStrike	win/grayware_confidence_60% (D)
Elastic	malicious (high confidence)
ESET-NOD32	NSIS/TrojanDownloader.Agent.OBN
APEX	Malicious
TrendMicro-HouseCall	TROJ_GEN.R002C0DBO24
Kaspersky	HEUR:Trojan-Downloader.Win32.OffLoader.gen
Avast	Win32:Malware-gen
Sophos	Mal/Generic-S
Google	Detected
F-Secure	Trojan.TR/Redcap.nvsaa
TrendMicro	TROJ_GEN.R002C0DBO24
Trapmine	malicious.moderate.ml.score
Varist	W32/Trojan.WMIT-7221
Avira	TR/Redcap.nvsaa
Antiy-AVL	Trojan[Downloader]/Win32.OffLoader.gen
Microsoft	Trojan:Win32/OffLoader.GPC!MTB
ZoneAlarm	HEUR:Trojan-Downloader.Win32.OffLoader.gen
Cynet	Malicious (score: 99)
VBA32	BScope.Trojan.Packed
Ikarus	Trojan.Win32.OffLoader
MaxSecure	Trojan.Malware.222601439.susgen
Fortinet	NSIS/Agent.OBN!tr.dldr
AVG	Win32:Malware-gen