Ursnif | 威胁等级: high | 类型: Banking Trojan

加密标识符

SHA25603c2c9fb9c320044c7c3185d3f82cda2624c9544eaa648594e6d544129f890b0
MD5d3b21b3e4020d684f45cc121394b4609
文件类型xls
大小61.5 KB
首次发现2023-03-09
文件名FM_0855740_E4_0832_2023_02.xls
标签GLS, Gozi, ITA, Ursnif, xls

恶意软件家族: Ursnif

Ursnif, eski trojan'dır.

类型Banking Trojan
编程语言C++
目标平台Windows
C2 协议HTTPS
用途Bankacılık trojanı
首次发现年份2007
别名Gozi

威胁指标 (IOC)

  • SHA256: 03c2c9fb9c320044c7c3185d3f82cda2624c9544eaa648594e6d544129f890b0
  • MD5: d3b21b3e4020d684f45cc121394b4609

您可以在 VirusTotal 上验证此样本的所有哈希值。

系统清理指南

  1. 将系统从网络断开——拔掉网线,关闭 Wi-Fi
  2. 在任务管理器中结束可疑进程
  3. 使用 Malwarebytes 或 Kaspersky 进行全盘扫描
  4. HKCU\Software\Microsoft\Windows\CurrentVersion\Run kayıtlarını kontrol edin
  5. 在任务计划程序中检查新建的计划任务
  6. 使用未感染的设备更改所有账户密码
  7. Gerekirse Windows'u yeniden yükleyin ve verilerinizi temiz bir yedeğe geri alın

YARA 规则提示

rule Ursnif_SHA256 {
    meta:
        description = "Ursnif sample: 03c2c9fb9c320044"
        threat_level = "high"
        first_seen = "2023-03-09"
    condition:
        hash.sha256(0, filesize) == "03c2c9fb9c320044c7c3185d3f82cda2624c9544eaa648594e6d544129f890b0"
}

Ursnif — 恶意软件档案

Ursnif/Gozi ISFB banking trojan 2007. magic.js 1 string max obfuski. kpmg/thelancet camouflage. Discord CDN. Man-in-browser.

恶意软件类型
Other
编程语言
C++
C2协议
HTTPS
目标系统
Windows
别名 (AKA)
Gozi

技术细节

Ursnif (Gozi/ISFB) is one of the oldest banking trojans, active since 2007. Source code leaked 2010 and 2015 spawning numerous variants: ISFB, RM3, LDR4. Man-in-the-browser attacks: form grabbing, video capture of banking sessions, web injections. C2 uses RSA-1024 encrypted HTTPS with domain generation algorithm (DGA) as fallback. RSA-2048 for config encryption, custom binary protocol. Anti-analysis: timing-based sandbox evasion, VMware/VirtualBox artifact detection. LDR4 variant (2022) dropped banking features to focus purely on ransomware delivery. Operated by TA544 (Narwhal Spider) in Italy, and by TA551 (Shathak) in Japan. Uses HTTPS for exfiltration with binary data format.

归因 / 威胁行为者

TA544 (Narwhal Spider), TA551 (Shathak), multiple operators

能力与行为

Zararlı Yazılım Aktivitesi
Kalıcılık Mekanizması
C2 İletişimi
Anti-Analiz

IOC列表 (2 个指标)

IOC — Ursnif
# SHA256 03c2c9fb9c320044c7c3185d3f82cda2624c9544eaa648594e6d544129f890b0 # MD5 d3b21b3e4020d684f45cc121394b4609
类型备注
sha256 03c2c9fb9c320044c7c3185d3f82cda2624c9544eaa648594e6d544129f890b0 Sample:Ursnif
md5 d3b21b3e4020d684f45cc121394b4609 Sample:Ursnif

C2服务器 (该家族共有 1 台已记录服务器)

地址 类型 端口 协议 状态 国家
91.92.109.38 ip 8080 HTTP sinkholed RU

C2 地址仅来自 KEYDAL 团队人工验证的恶意软件样本。禁止用于商业用途。

标签
ursnifbanking trojanmalwarehighsha256hash-analizi